Difference between revisions of "Chemical Etchants"

From OpenCircuits
Jump to navigation Jump to search
(reverted to last good page)
Line 1: Line 1:
{{stub}}
+
[http://uzmilana.com/pages/htmls/xxngjq.html Nonne puttane] [http://suncom.uz/picture_library/oabqov.html Autodromo monza] [http://suncom.uz/picture_library/qccxtq.html Video gratis sesso con animali] [http://marketingstat.com/iq/mpexfe.html Prestito lazio] [http://artfountains.eu/images/icons/tbvoss.html Swan tour sharm] [http://jesper-holm.dk/GeneratedItems/qvvdfg.html Gay che trombano] [http://suncom.uz/picture_library/jpannn.html Ciccione troie] [http://alpe-fountains.com/images/boufia.html Marina rinaldi] [http://jtcmed.com/zaya/srbkqv.html dichiarazione successione] [http://bigeyelive.com/images/icons/xxnltq.html Agenzia viaggio tiuccia corsica] [http://jesper-holm.dk/GeneratedItems/awwhjt.html Hotel boschetto roccaraso] [http://uzmilana.com/pages/htmls/tkiowm.html Tempesta damore] [http://jesper-holm.dk/GeneratedItems/wfhfrc.html Vecchie troie pelose] [http://jtcmed.com/zaya/smgxhg.html King of kings motorhead mp3] [http://uzmilana.com/pages/htmls/ijjeck.html Hentai sakura] [http://uzmilana.com/pages/htmls/ltecbg.html Albergo siena centro] [http://uzmilana.com/pages/htmls/vfjehe.html Roberto bolle] [http://jtcmed.com/zaya/twrqrs.html Www portale immigrazione] [http://alpe-fountains.com/images/rturjx.html Sedia legno] [http://jtcmed.com/zaya/utswdh.html suore porche] [http://uzmilana.com/pages/htmls/iccfoj.html Video segretarie] [http://jtcmed.com/zaya/xxjkem.html Disegni tribali] [http://infocz.wz.cz/kneovd.html Meteosat] [http://suncom.uz/picture_library/qaieer.html Foto sadomaso] [http://suncom.uz/picture_library/jjjksn.html Porte interne] [http://suncom.uz/picture_library/sgoqib.html Lapo elkann] [http://alpe-fountains.com/images/nsxumi.html Ristorante giapponese-milano] [http://uzmilana.com/pages/htmls/xbaexi.html Slam dunk] [http://suncom.uz/picture_library/nwowut.html Collegamento modem adsl] [http://suncom.uz/picture_library/xloprt.html Antonello venditti] [http://jesper-holm.dk/GeneratedItems/pniflg.html Decoder dtt sat] [http://jtcmed.com/zaya/wabtlp.html Ingoio sborra] [http://jesper-holm.dk/GeneratedItems/hijrgq.html Prestito campobasso] [http://suncom.uz/picture_library/dbgeah.html Itinerario enogastronomici italia] [http://artfontany.cz/images/icons/xkcxjp.html Casa vacanza gallipoli] [http://artfountains.eu/images/icons/aggqgk.html Valturit] [http://jesper-holm.dk/GeneratedItems/jibxwk.html Addio al celibato] [http://jtcmed.com/zaya/qkgjji.html Orologio breil] [http://artfontany.cz/images/icons/soaelt.html Assicurazione alleanza dell agenzia] [http://artfountains.eu/images/icons/jrsbfu.html Lerici albergo] [http://infocz.wz.cz/tsqspm.html Hotel strasburgo] [http://alpe-fountains.com/images/hkctew.html Foto culi aperti] [http://alpe-fountains.com/images/bkeudn.html Orologio festina] [http://bigeyelive.com/images/icons/fxrtpa.html Anteprima video lesbo] [http://jesper-holm.dk/GeneratedItems/eacptt.html Incontrare girl ed escort bologna] [http://artfountains.eu/images/icons/qbiguu.html Passere pelose] [http://jtcmed.com/zaya/kuqrfg.html Spiaggie nudiste in italia] [http://uzmilana.com/pages/htmls/pvqqxx.html Scolarette porno] [http://infocz.wz.cz/lqjldl.html Foto annalisa mandolino] [http://suncom.uz/picture_library/bpmsbv.html Dragonball x immagini] [http://uzmilana.com/pages/htmls/dmirnw.html Club seventeen group] [http://uzmilana.com/pages/htmls/cvronu.html Mappa satellitare] [http://uzmilana.com/pages/htmls/qbisak.html Jamelia tiziano ferro univeral prayer] [http://jtcmed.com/zaya/gqbtjv.html Gossip calciatore] [http://jtcmed.com/zaya/pruxce.html Geova] [http://uzmilana.com/pages/htmls/ansuhd.html Vientiane ristorante] [http://jtcmed.com/zaya/viuevc.html Emmelunga veneto] [http://uzmilana.com/pages/htmls/qkimag.html Paranoid black sabbath lyric] [http://jtcmed.com/zaya/tnwswk.html Motoclub] [http://suncom.uz/picture_library/wfxfqq.html Addobbi palloncini] [http://marketingstat.com/iq/srddek.html Climatizzatore portatile] [http://artfountains.eu/images/icons/nhnmwi.html Short skirt] [http://uzmilana.com/pages/htmls/llrvbq.html Bristol ristorante] [http://artfountains.eu/images/icons/pfukxt.html Black tits] [http://bigeyelive.com/images/icons/nnolqb.html Sesso lesbica] [http://jesper-holm.dk/GeneratedItems/ppiudf.html Valentina stacy] [http://bigeyelive.com/images/icons/bcaend.html Abbigliamento ciclismo online] [http://jesper-holm.dk/GeneratedItems/exixfd.html Albergo mosca centro] [http://jtcmed.com/zaya/hspouo.html Orologio cartier] [http://artfountains.eu/images/icons/xuowbg.html Lugano libreria universitaria] [http://jesper-holm.dk/GeneratedItems/gepwvq.html Trucking job] [http://jesper-holm.dk/GeneratedItems/rrvjtv.html Uniroma1] [http://uzmilana.com/pages/htmls/hsnrlr.html Cazzo culo] [http://suncom.uz/picture_library/idnknj.html Hp deskjet] [http://artfontany.cz/images/icons/rgthuq.html Escort italiane] [http://jesper-holm.dk/GeneratedItems/goobdq.html Mosca rossa] [http://jesper-holm.dk/GeneratedItems/iqoknh.html Inzaghi vip] [http://alpe-fountains.com/images/khbidk.html Tivutibi com] [http://alpe-fountains.com/images/qktegj.html Cuccia per cani in plastica] [http://jtcmed.com/zaya/ltbhtr.html Femdom] [http://artfontany.cz/images/icons/qhaqop.html Ogenki clinic] [http://jesper-holm.dk/GeneratedItems/jhnvrk.html Arenzano] [http://jesper-holm.dk/GeneratedItems/dscqch.html Rinegoziazione mutuo] [http://alpe-fountains.com/images/hwwosl.html Materasso lattice naturale] [http://artfontany.cz/images/icons/iffmsi.html Avy scott playful bedroom] [http://suncom.uz/picture_library/lwtfko.html Guida agli agriturismo liguria] [http://alpe-fountains.com/images/lfmbsb.html Anna galiena] [http://uzmilana.com/pages/htmls/umnbbk.html Serena garitta intervista] [http://artfontany.cz/images/icons/efubfm.html Dogana svizzera] [http://jesper-holm.dk/GeneratedItems/msruhv.html Mononucleosi com] [http://suncom.uz/picture_library/sgtqgn.html Meteo a s pietroburgo] [http://marketingstat.com/iq/quuopm.html Ricerca personale] [http://infocz.wz.cz/xpxmnp.html Spagna shemale] [http://infocz.wz.cz/kkkdvo.html Parquet ecologico bamflor] [http://jtcmed.com/zaya/psirti.html Pitagora musica] [http://alpe-fountains.com/images/pctfwf.html Pelletterie] [http://jesper-holm.dk/GeneratedItems/hpirqg.html Scarlattina] [http://alpe-fountains.com/images/hssxki.html Immagine dei scheletro] [http://infocz.wz.cz/kfghxc.html Sunia] [http://jesper-holm.dk/GeneratedItems/dlvjpm.html Foto pisciare] [http://alpe-fountains.com/images/mpnlbf.html Incontri modena] [http://jesper-holm.dk/GeneratedItems/rdxukw.html Racconti incesto gay] [http://artfountains.eu/images/icons/hxhqav.html Carabbinieri it] [http://uzmilana.com/pages/htmls/euvvnw.html Milli d abbraccio] [http://suncom.uz/picture_library/ujqiqn.html Video cartoni animati porno gratis] [http://jtcmed.com/zaya/eclnti.html Albergo istanbul] [http://jesper-holm.dk/GeneratedItems/htojlu.html Inkjet cartridge] [http://jesper-holm.dk/GeneratedItems/uqlhsm.html Happysexo com] [http://uzmilana.com/pages/htmls/xgqrbf.html Pornostar spagnole] [http://suncom.uz/picture_library/drijux.html Vivaio piante] [http://jesper-holm.dk/GeneratedItems/hajqud.html Comitato ligure fisi] [http://alpe-fountains.com/images/bcnrbk.html Agriturismo casa vacanza] [http://jesper-holm.dk/GeneratedItems/rftqwi.html Articolo 31] [http://jtcmed.com/zaya/bqgggr.html Xxx tug job] [http://bigeyelive.com/images/icons/npmlli.html Motore asincrono trifase] [http://artfontany.cz/images/icons/thflkt.html Lettino stokke] [http://uzmilana.com/pages/htmls/grdcjn.html Nortek] [http://uzmilana.com/pages/htmls/evhffl.html Canalis video porno] [http://uzmilana.com/pages/htmls/mlbxob.html Link www edream it] [http://jesper-holm.dk/GeneratedItems/wbcgwr.html Antifurto motocicletta] [http://jesper-holm.dk/GeneratedItems/wouhcw.html Casa arredamento] [http://jesper-holm.dk/GeneratedItems/ccxmrp.html Donne arrapate] [http://alpe-fountains.com/images/ttqgfw.html Asian mature] [http://artfountains.eu/images/icons/haortj.html Anal sex] [http://uzmilana.com/pages/htmls/sxwihv.html Viaggio cral] [http://uzmilana.com/pages/htmls/oovxjx.html Toscana turismo net] [http://suncom.uz/picture_library/rkpjrs.html Porche pompinare] [http://suncom.uz/picture_library/gjalrf.html Cap elisa triani] [http://artfontany.cz/images/icons/urllpa.html Intimissimi franchising] [http://alpe-fountains.com/images/rupjdj.html Gioco online flashgames it] [http://artfontany.cz/images/icons/peqqbt.html Foto fujico xxx] [http://jtcmed.com/zaya/ouxopn.html Monster dildo] [http://marketingstat.com/iq/cumurx.html Vacanza sport] [http://jtcmed.com/zaya/wqktuh.html Allinternal sarah] [http://alpe-fountains.com/images/dlbqba.html Anello in turchese] [http://jesper-holm.dk/GeneratedItems/dbwkgj.html Fighe pelose indiane] [http://jesper-holm.dk/GeneratedItems/ncocvg.html Susanna torretta nuda] [http://jesper-holm.dk/GeneratedItems/lacbnh.html Monster black cock] [http://alpe-fountains.com/images/qguqhi.html Angeli e demoni] [http://alpe-fountains.com/images/nxajgo.html Topless sara varone] [http://jtcmed.com/zaya/prvftp.html Azienda autotrasporti] [http://jesper-holm.dk/GeneratedItems/wxtusb.html Dalida 1996 perugia] [http://jesper-holm.dk/GeneratedItems/htlkvp.html Winx club porno] [http://infocz.wz.cz/fsvqbd.html Lastminute normandia] [http://artfountains.eu/images/icons/iulqsn.html Vagina aperta] [http://alpe-fountains.com/images/xbmhrk.html Russian-lolita] [http://artfountains.eu/images/icons/ggmwwq.html Chattare subito] [http://alpe-fountains.com/images/hooahw.html Avezzano] [http://uzmilana.com/pages/htmls/waompk.html Sexy bikini model] [http://jtcmed.com/zaya/lwvvcb.html Albergo genova] [http://alpe-fountains.com/images/mjilhl.html Gestionale per agenzia viaggi] [http://infocz.wz.cz/vixkjt.html mardi gras tit] [http://jesper-holm.dk/GeneratedItems/hncghf.html I testi di francesco guccini] [http://jtcmed.com/zaya/ekopgc.html Europlex] [http://uzmilana.com/pages/htmls/lmtwsw.html Sfondate anali] [http://uzmilana.com/pages/htmls/xjugim.html Solletico piedi] [http://alpe-fountains.com/images/epvxbp.html Cognata figona] [http://suncom.uz/picture_library/ajvsmc.html Il corriere dello sport] [http://artfontany.cz/images/icons/qkxkaa.html Assicurazione ciclomotori preventivi] [http://jtcmed.com/zaya/spdoha.html Gioco prezioso cantatu] [http://jesper-holm.dk/GeneratedItems/exvfjo.html Volo aereo stoccarda] [http://marketingstat.com/iq/lmvcte.html Giusy] [http://artfountains.eu/images/icons/ovvmut.html Case vacanza affitti sicilia] [http://jtcmed.com/zaya/uofoam.html Amsterdam offerta] [http://alpe-fountains.com/images/vltljd.html Vendo dobermann] [http://suncom.uz/picture_library/qvlrrx.html Lo chiamavano trinita] [http://suncom.uz/picture_library/gkouaw.html Foto donne vip] [http://alpe-fountains.com/images/srxcib.html Video porno professoresse] [http://alpe-fountains.com/images/ubnkug.html Forum reggina] [http://infocz.wz.cz/dptuwj.html Bellissimi culi] [http://bigeyelive.com/images/icons/llsnhb.html Concorso oss albenga] [http://uzmilana.com/pages/htmls/lecfrc.html Choppers] [http://jesper-holm.dk/GeneratedItems/wwvewk.html Storia gioco calcio campionato serie] [http://alpe-fountains.com/images/gtbirr.html Cgilscuola it] [http://suncom.uz/picture_library/sgdrcg.html Smorfia] [http://alpe-fountains.com/images/siqaob.html Cristiano angelucci] [http://infocz.wz.cz/tgnsbu.html Tagli] [http://suncom.uz/picture_library/ajablf.html Qsvs] [http://jesper-holm.dk/GeneratedItems/aqqkvq.html Mallteam] [http://jesper-holm.dk/GeneratedItems/jxijka.html Alloggi economici] [http://bigeyelive.com/images/icons/wcdjra.html Wwwunicreditbanca] [http://artfountains.eu/images/icons/hkosia.html Video hentai gay] [http://alpe-fountains.com/images/xaaxqm.html Disneychannel it] [http://alpe-fountains.com/images/hedumh.html Gaydar co uk] [http://jtcmed.com/zaya/evtxxh.html Pono gratis] [http://suncom.uz/picture_library/okhene.html Residence sardegna vacanza] [http://suncom.uz/picture_library/pjpsiq.html Max biaggi] [http://suncom.uz/picture_library/wcngak.html Orologio solario] [http://artfontany.cz/images/icons/tbegwx.html Terme slovenia si] [http://bigeyelive.com/images/icons/rmaewk.html Hotel filippine] [http://suncom.uz/picture_library/fwgebb.html Dove dormire] [http://suncom.uz/picture_library/hfswdg.html Epson meteo it] [http://bigeyelive.com/images/icons/kncljb.html Donne nude vogliose] [http://alpe-fountains.com/images/nfpbpa.html Celiachia] [http://alpe-fountains.com/images/wljuwl.html Blu express it] [http://uzmilana.com/pages/htmls/tsbijo.html Testi di samuele bersani] [http://jtcmed.com/zaya/mpottb.html Iper busnago] [http://bigeyelive.com/images/icons/afkmuh.html Mature ass fuck] [http://artfontany.cz/images/icons/qlktlc.html Batteria samsung sgh e720] [http://artfountains.eu/images/icons/kikkrf.html Albergo 1 stella budapest] [http://burgundysa.50webs.com/geena-lee1/ geena lee nolin] [http://eneyeney.50webs.com/html/come-avviare/ come avviare un apicoltura] [http://eneyeney.50webs.com/html/keita-vs/ keita vs martin solveig madan] [http://eneyeney.50webs.com/html/video-della5/ video della guerra] [http://0xmidnightx0.50webs.com/data/notty-play/ notty play en the noise] [http://0xmidnightx0.50webs.com/data/ninfe/ ninfe] [http://0xmidnightx0.50webs.com/data/olimpus-c7/ olimpus c 480] [http://burgundysa.50webs.com/masterizzatore-dvd38/ masterizzatore dvd 16x] [http://eneyeney.50webs.com/html/ap-toner/ ap400 toner] [http://0xmidnightx0.50webs.com/data/usb-decoder2/ usb decoder digitale] [http://burgundysa.50webs.com/dance-news2/ dance news 7] [http://eneyeney.50webs.com/html/ferdi/ ferdi] [http://0xmidnightx0.50webs.com/data/copertina-cd38/ copertina cd veline] [http://0xmidnightx0.50webs.com/data/hotel-a41/ hotel a bucarest] [http://burgundysa.50webs.com/tchatche-com/ tchatche com] [http://0xmidnightx0.50webs.com/data/ghiaccio-blu/ ghiaccio blu blue ice] [http://0xmidnightx0.50webs.com/data/toiletes/ toiletes] [http://burgundysa.50webs.com/arco-di/ arco di luminara] [http://jonnyara.50webs.com/still-alive.htm still alive wave to the 80s] [http://eneyeney.50webs.com/html/video-decapitato2/ video decapitato download] [http://jonnyara.50webs.com/abrixas.htm abrixas] [http://burgundysa.50webs.com/extra-e/ extra e tettona] [http://0xmidnightx0.50webs.com/data/materassi-ortopedico/ materassi ortopedico] [http://burgundysa.50webs.com/quattrochi/ quattrochi] [http://jonnyara.50webs.com/testi-di37.htm testi di grease in italiano] [http://jonnyara.50webs.com/ilva.htm ilva] [http://0xmidnightx0.50webs.com/data/italimpianti/ italimpianti] [http://0xmidnightx0.50webs.com/data/medmar/ medmar] [http://eneyeney.50webs.com/html/boville-ernica/ boville ernica] [http://eneyeney.50webs.com/html/bosch-frigoriferi/ bosch frigoriferi ad incasso] [http://jonnyara.50webs.com/lithuanian-airlines.htm lithuanian airlines] [http://burgundysa.50webs.com/televisori-mivar4/ televisori mivar 21 flat] [http://jonnyara.50webs.com/i-calci.htm i calci di rigore] [http://jonnyara.50webs.com/corsi-di20.htm corsi di comunicazione mn] [http://jonnyara.50webs.com/programma-quick.htm programma quick time] [http://0xmidnightx0.50webs.com/data/sakic/ sakic] [http://jonnyara.50webs.com/tribali-ciondoli.htm tribali ciondoli] [http://eneyeney.50webs.com/html/tra-due2/ tra due risvegli] [http://0xmidnightx0.50webs.com/data/matite-colorate/ matite colorate] [http://jonnyara.50webs.com/midwestern.htm midwestern] [http://0xmidnightx0.50webs.com/data/hard-disk274/ hard disk 250 eide] [http://jonnyara.50webs.com/dolce-e26.htm dolce e gabbana sposa] [http://0xmidnightx0.50webs.com/data/usb-motorola2/ usb motorola c550] [http://eneyeney.50webs.com/html/pandemonium/ pandemonium 2] [http://burgundysa.50webs.com/jennifer-paige2/ jennifer paige these days] [http://0xmidnightx0.50webs.com/data/re-pandilla/ re pandilla] [http://0xmidnightx0.50webs.com/data/ricambi-philips/ ricambi philips] [http://eneyeney.50webs.com/html/conference-call/ conference call] [http://jonnyara.50webs.com/lavoro-part.htm lavoro part time a padova] [http://0xmidnightx0.50webs.com/data/dal-fabbro/ dal fabbro beniamino] [http://0xmidnightx0.50webs.com/data/cucine-arte/ cucine arte povera] [http://burgundysa.50webs.com/hd-maxtor14/ hd maxtor 250 gb] [http://0xmidnightx0.50webs.com/data/guns-don/ guns don t cry] [http://burgundysa.50webs.com/sack-gustav/ sack gustav] [http://burgundysa.50webs.com/toyota-land10/ toyota land cruiser autocarro] [http://jonnyara.50webs.com/la-ricetta.htm la ricetta di oggi] [http://0xmidnightx0.50webs.com/data/allinea/ allinea] [http://0xmidnightx0.50webs.com/data/lavatrice-a1/ lavatrice a] [http://jonnyara.50webs.com/regione-lombardia2.htm regione lombardia leggi] [http://eneyeney.50webs.com/html/clio3/ clio 1 2] [http://burgundysa.50webs.com/kit-ph/ kit ph] [http://0xmidnightx0.50webs.com/data/trucchi-ps3/ trucchi ps2 principe di persia] [http://burgundysa.50webs.com/foto-cher/ foto cher] [http://burgundysa.50webs.com/settimo-cielo4/ settimo cielo bimbo biondo] [http://eneyeney.50webs.com/html/hard-disk278/ hard disk esterno 300 gb] [http://0xmidnightx0.50webs.com/data/toca1/ toca 2] [http://eneyeney.50webs.com/html/nu-sinh/ nu sinh nho quyen] [http://eneyeney.50webs.com/html/nicolas-barg/ nicolas barg] [http://eneyeney.50webs.com/html/la-bugiarda/ la bugiarda] [http://0xmidnightx0.50webs.com/data/canon-powershot22/ canon powershot g5] [http://eneyeney.50webs.com/html/baile-del1/ baile del pescao] [http://burgundysa.50webs.com/miusic/ miusic] [http://burgundysa.50webs.com/dublino-intrattenimento/ dublino intrattenimento] [http://burgundysa.50webs.com/apple-cinema2/ apple cinema 30] [http://jonnyara.50webs.com/bullr.htm bullr] [http://eneyeney.50webs.com/html/laurea-breve/ laurea breve] [http://eneyeney.50webs.com/html/francesco-barretta/ francesco barretta] [http://burgundysa.50webs.com/vivident/ vivident] [http://burgundysa.50webs.com/mutuo-conto/ mutuo conto arancio] [http://0xmidnightx0.50webs.com/data/belle-histoire/ belle histoire] [http://eneyeney.50webs.com/html/cassette-adapter/ cassette adapter] [http://0xmidnightx0.50webs.com/data/olympus-camedia25/ olympus camedia c 470 zoom] [http://eneyeney.50webs.com/html/frist-aid/ frist aid] [http://eneyeney.50webs.com/html/nomi-squadre/ nomi squadre] [http://burgundysa.50webs.com/one-shot6/ one shot 80 vol] [http://burgundysa.50webs.com/ragazzo-reggio1/ ragazzo reggio calabria] [http://burgundysa.50webs.com/penace/ penace] [http://jonnyara.50webs.com/gay-e1.htm gay e transex orge sesso] [http://eneyeney.50webs.com/html/donne-grasse4/ donne grasse nude] [http://eneyeney.50webs.com/html/for-so/ for so long mary ann] [http://burgundysa.50webs.com/proteccion-ambiental/ proteccion ambiental] [http://0xmidnightx0.50webs.com/data/lemon-soda/ lemon soda] [http://jonnyara.50webs.com/radeon-vivo2.htm radeon9550 vivo] [http://0xmidnightx0.50webs.com/data/paola-perego6/ paola perego foto del calendario 2005] [http://burgundysa.50webs.com/fotocamera-digitali5/ fotocamera digitali macchina fotografica] [http://jonnyara.50webs.com/lei7.htm lei 23] [http://burgundysa.50webs.com/www-guns/ www guns e rose] [http://jonnyara.50webs.com/sure-took.htm sure took magik] [http://jonnyara.50webs.com/agenzia-immobilare.htm agenzia immobilare] [http://eneyeney.50webs.com/html/pentium-iv1/ pentium iv] [http://0xmidnightx0.50webs.com/data/video-porno59/ video porno pamela] [http://eneyeney.50webs.com/html/tell-me4/ tell me did you fly away] [http://0xmidnightx0.50webs.com/data/video-lo1/ video lo strano percorso] [http://eneyeney.50webs.com/html/smami/ smami] [http://jonnyara.50webs.com/bmw-serie27.htm bmw serie 1 120d futura] [http://eneyeney.50webs.com/html/carte-/ carte 7 e mezzo] [http://0xmidnightx0.50webs.com/data/lg-d/ lg 5163d] [http://0xmidnightx0.50webs.com/data/le-regine/ le regine dellamore proibito] [http://eneyeney.50webs.com/html/fotos-proibidas/ fotos proibidas xxx] [http://jonnyara.50webs.com/ristorante-tipico.htm ristorante tipico] [http://eneyeney.50webs.com/html/clu-america/ clu america] [http://burgundysa.50webs.com/david-guetta1/ david guetta mont] [http://jonnyara.50webs.com/turion-mt1.htm turion mt] [http://0xmidnightx0.50webs.com/data/a-colori1/ a3 colori stampanti epson] [http://0xmidnightx0.50webs.com/data/le-serpent/ le serpent] [http://0xmidnightx0.50webs.com/data/jarabe-de/ jarabe de palo romeo y julieta] [http://0xmidnightx0.50webs.com/data/girls-arezzo/ girls arezzo] [http://eneyeney.50webs.com/html/cane-razza/ cane razza boxer] [http://jonnyara.50webs.com/cori-del1.htm cori del napoli] [http://burgundysa.50webs.com/italia-calcio/ italia calcio] [http://0xmidnightx0.50webs.com/data/hell-yeah/ hell yeah] [http://eneyeney.50webs.com/html/minuetto-boccherini/ minuetto boccherini] [http://eneyeney.50webs.com/html/giochi-19/ giochi  gratis] [http://0xmidnightx0.50webs.com/data/easy-laminator/ easy laminator] [http://eneyeney.50webs.com/html/www-joe/ www joe t vanelli it] [http://eneyeney.50webs.com/html/nuova-opel9/ nuova opel tigra] [http://burgundysa.50webs.com/locali-da/ locali da scmbisti] [http://jonnyara.50webs.com/il-roveto.htm il roveto] [http://0xmidnightx0.50webs.com/data/litalia-cerca/ litalia cerca aiuto su game boy advance] [http://jonnyara.50webs.com/gioco-danza.htm gioco danza] [http://burgundysa.50webs.com/cappellino-di/ cappellino di lana] [http://jonnyara.50webs.com/chitarra-zen.htm chitarra zen] [http://burgundysa.50webs.com/santiago-cose/ santiago cose fare] [http://jonnyara.50webs.com/phantom-planet2.htm phantom planet california] [http://jonnyara.50webs.com/lacie-x.htm lacie 16x dl] [http://jonnyara.50webs.com/dsc-f2.htm dsc f77] [http://burgundysa.50webs.com/cani-trasportino/ cani trasportino] [http://eneyeney.50webs.com/html/codici-a/ codici a barre] [http://jonnyara.50webs.com/stampante-laser54.htm stampante laser epson epln7000] [http://burgundysa.50webs.com/keita/ keita] [http://jonnyara.50webs.com/ourinhos.htm ourinhos] [http://burgundysa.50webs.com/summer-heat/ summer heat beach volleyball] [http://0xmidnightx0.50webs.com/data/viaggi-del1/ viaggi del ventaglio] [http://jonnyara.50webs.com/ampicilina.htm ampicilina] [http://burgundysa.50webs.com/norton-internet9/ norton internet] [http://jonnyara.50webs.com/midi-saoco.htm midi saoco] [http://eneyeney.50webs.com/html/x-evolution/ x9 evolution] [http://jonnyara.50webs.com/msm-free.htm msm free] [http://burgundysa.50webs.com/tastiera-wireless8/ tastiera wireless optical desktop] [http://burgundysa.50webs.com/calciomercato-it/ calciomercato it] [http://0xmidnightx0.50webs.com/data/kenwood-robot1/ kenwood robot da cucina] [http://eneyeney.50webs.com/html/vassoio-argento/ vassoio argento] [http://eneyeney.50webs.com/html/lesbo-italian/ lesbo italian] [http://burgundysa.50webs.com/elves1/ elves] [http://burgundysa.50webs.com/derryl/ derryl] [http://burgundysa.50webs.com/brother-cartuccia1/ brother cartuccia toner tn2000] [http://eneyeney.50webs.com/html/empleos-en/ empleos en apodaca nuevo leon] [http://eneyeney.50webs.com/html/abba-the1/ abba the last video] [http://jonnyara.50webs.com/registratore-digitale12.htm registratore digitale irradio] [http://burgundysa.50webs.com/comment-t/ comment t aimer] [http://burgundysa.50webs.com/testo-tradotto12/ testo tradotto the reason] [http://eneyeney.50webs.com/html/prodotti-viso/ prodotti viso shiseido] [http://jonnyara.50webs.com/mondiali-calcio1.htm mondiali calcio] [http://0xmidnightx0.50webs.com/data/telechargement/ telechargement] [http://0xmidnightx0.50webs.com/data/drescher/ drescher] [http://0xmidnightx0.50webs.com/data/malattie-midollo/ malattie midollo spinale] [http://eneyeney.50webs.com/html/motorola-sm/ motorola sm56 fax modem] [http://0xmidnightx0.50webs.com/data/julia-residance/ julia residance] [http://eneyeney.50webs.com/html/nini-d1/ nini d angello] [http://eneyeney.50webs.com/html/r-yamaha/ r1 yamaha 2002] [http://burgundysa.50webs.com/himno-nacional2/ himno nacional del peru] [http://0xmidnightx0.50webs.com/data/the-bleck/ the bleck eyed peas] [http://0xmidnightx0.50webs.com/data/midi-mujer/ midi mujer amante] [http://eneyeney.50webs.com/html/dog-end/ dog end cat] [http://jonnyara.50webs.com/bauletto-moto.htm bauletto moto] [http://eneyeney.50webs.com/html/jennifer-lopez10/ jennifer lopez live] [http://0xmidnightx0.50webs.com/data/ati-radeon100/ ati radeon x600xt 128mb] [http://eneyeney.50webs.com/html/athlon16/ athlon64 4800] [http://0xmidnightx0.50webs.com/data/ursula-cavalcante/ ursula cavalcante] [http://eneyeney.50webs.com/html/diario-di9/ diario di un parroco di campagna] [http://burgundysa.50webs.com/wholesale-jewelry/ wholesale jewelry] [http://burgundysa.50webs.com/perversione-sessuale/ perversione sessuale con animali] [http://burgundysa.50webs.com/sally-di/ sally di vasco rossi] [http://0xmidnightx0.50webs.com/data/universita-federico1/ universita federico ii napoli] [http://jonnyara.50webs.com/scopa-elettrica14.htm scopa elettrica amstrad] [http://eneyeney.50webs.com/html/headbangers-ball/ headbangers ball] [http://0xmidnightx0.50webs.com/data/www-togni/ www togni it] [http://eneyeney.50webs.com/html/mica-milano/ mica milano calze] [http://eneyeney.50webs.com/html/ever-dream/ ever dream] [http://0xmidnightx0.50webs.com/data/videos-de45/ videos de reggaetony] [http://jonnyara.50webs.com/cavo-alpine.htm cavo alpine] [http://burgundysa.50webs.com/iq-maraton/ iq maraton] [http://eneyeney.50webs.com/html/deviant/ deviant] [http://burgundysa.50webs.com/monitor-acer22/ monitor acer al 1912] [http://jonnyara.50webs.com/il-bacio5.htm il bacio di una morta] [http://eneyeney.50webs.com/html/toshiba8/ toshiba 145] [http://burgundysa.50webs.com/logitech-pocket/ logitech pocket] [http://burgundysa.50webs.com/como-comunicazione/ como comunicazione] [http://burgundysa.50webs.com/mara-piromalli/ mara piromalli] [http://jonnyara.50webs.com/hotel-bratislava.htm hotel bratislava] {{stub}}
  
 
After masking off the parts of the copper-clad board you want to keep, you need to remove the parts you don't want to keep. This is usually done by chemically etching away the copper. There are a lot of different chemical techniques for doing this, each with its own advantages and drawbacks.
 
After masking off the parts of the copper-clad board you want to keep, you need to remove the parts you don't want to keep. This is usually done by chemically etching away the copper. There are a lot of different chemical techniques for doing this, each with its own advantages and drawbacks.
Line 8: Line 8:
 
This is the most common hobbyist etchant. Ferric chloride, FeCl<sub>3</sub>, is a brownish substance. It's usually sold in a bottle (dissolved in water, perhaps with a little acid or peroxide) or as a powder (which you have to dissolve in water).
 
This is the most common hobbyist etchant. Ferric chloride, FeCl<sub>3</sub>, is a brownish substance. It's usually sold in a bottle (dissolved in water, perhaps with a little acid or peroxide) or as a powder (which you have to dissolve in water).
  
When in solution, ferric chloride is a ferric ion (Fe<sup>3+</sup>) and a chloride ion (Cl<sup>-</sup>). The ferric ion reacts with the metallic copper on the circuit board in a redox reaction, producing a ferrous ion (Fe<sup>2+</sup>) and cuprous or cupric (Cu<sup>1+</sup> or Cu<sup>2+</sup>) copper. The chlorine is just along for the ride. The copper ion, unlike the metallic copper, is soluble, so it leaves the circuit board and goes into solution. The reaction products form a black sludge which settles to the bottom of the etching tank. After etching enough copper, all your Fe<sup>3+</sup> is used up and your solution is full of Cu<sup>1+</sup>, and you need to get more etchant.
+
When in solution, ferric chloride is a ferric ion (Fe<sup>3 </sup>) and a chloride ion (Cl<sup>-</sup>). The ferric ion reacts with the metallic copper on the circuit board in a redox reaction, producing a ferrous ion (Fe<sup>2 </sup>) and cuprous or cupric (Cu<sup>1 </sup> or Cu<sup>2 </sup>) copper. The chlorine is just along for the ride. The copper ion, unlike the metallic copper, is soluble, so it leaves the circuit board and goes into solution. The reaction products form a black sludge which settles to the bottom of the etching tank. After etching enough copper, all your Fe<sup>3 </sup> is used up and your solution is full of Cu<sup>1 </sup>, and you need to get more etchant.
  
 
== Ammonium Persulfate ==
 
== Ammonium Persulfate ==
Expensive & hard to control and optimize the process parameters (such as specific gravity & pH value).
+
Expensive
 
 
== HydroChloric Acid / Hydrogen Peroxide ==
 
 
 
Mixing about 1 part HCl (Which can be found at most hardware stores, also known as Muriatic Acid. Ask for concrete cleaner.) into 2 parts Hydrogen peroxide (normally used for cleaning cuts) you can make a fairly powerful etchant. Use gloves and don't breathe the fumes though. This will etch a 3"x5" board in less than 10 minutes. No need to heat it up. I usually like to drill a small hole through the board on a corner and thread a wire or nylon string through to help agitate / remove the board.
 
 
 
When the board is done etching, the etchant will probably look like green kool-aid, from the copper content in it. This stuff is highly corrosive and will burn skin, which is why you should wear gloves. But it is easy to handle, and fairly easy to dispose of. the etchant is easily deactivated with baking soda. Pour enough baking soda into it slowly (to keep it from boiling and overflowing... remember what happens with baking soda/vinegar? ya...) until it is a solid mass, then leave it in the sun to dry. You should contact your local authorities to find out what you should do with it next. Whatever you do, DO NOT dump the stuff down the drain, it will eat through your pipes just like any of the other etchants.
 
 
 
== Sodium Persulfate ==
 
More environmentally friendly than ferric chloride.  Can monitor the etching as initially clear new etchant solution turns blue from the copper ions.
 
 
 
== Acid Cupric Chloride ==
 
Dead simple etchant made from ordinary, store-bought chemicals (hydrochloric acid and hydrogen peroxide). Has the advantage that it can be regenerated by bubbling oxygen/air through it, or by adding more H<sub>2</sub>O<sub>2</sub>. In addition, it doesn't get used up: the etchant bath simply grows with use (kind of like sourdough starter…)
 
The used etchant also makes a great algecide/pH reducer for your pool (and a whole lot cheaper than that stuff they sell at the pool store).
 
 
 
What you need:
 
* 38% Hydrochloric Acid, HCl (available at finer hardware stores or pool supply stores as Muriatic Acid)
 
* 3% Hydrogen Peroxide, H<sub>2</sub>O<sub>2</sub> (available from any drug store)
 
* Plastic or Glass Pans, Jars, and tongs (no metal)
 
Directions:
 
 
 
# Mix your HCl and H<sub>2</sub>O<sub>2</sub> 1:1 in a non-metalic container, making sure to add the acid slowly to the H<sub>2</sub>O<sub>2</sub>. DO NOT ADD THE H<sub>2</sub>O<sub>2</sub> TO THE ACID!!!
 
# After you've masked your board, dip it in the solution and constantly agitate. You should notice a dark green cloud start to come from the board almost immedately which quickly dissapears or turns lighter as it gets further from the surface of the board.
 
# Etching should take about 10min depending on the temperature and how well you agitated the etchant. When all of the copper is gone, dip in water to wash off any stray etchant and stop the reaction.
 
# When done etching, save used etchant in a non-metalic container and mark clearly its contents.
 
# If your etchant has become a dark, murky green color, add a little bit of H<sub>2</sub>O<sub>2</sub> or bubble air/O<sub>2</sub> through the solution to regenerate it back to a light, transparent green color.
 
See links at bottom for more information on the chemistry and some pictures of the process.
 
 
 
== Disposal procedures ==
 
Flushing used etchant down the drain is a bad idea (and usually illegal) because copper ion is toxic. The usual recommended way to dispose of hobbyist amounts of etchant is to convert it to a solid somehow and dispose of the solid in the trash.
 
* [http://www.kepro.com/fmc4.htm Kepro Circuit Systems] Removal of Copper and Persulfate from Spent Sodium Persulfate Etchant by Precipitation
 
 
 
== External Links ==
 
* [http://www.k9spud.com/wiki/PCB:Etchants Ferric Chloride vs. Ammonium Persulfate] and other etching chemicals.
 
* [http://members.optusnet.com.au/~eseychell/PCB/etching_CuCl/index.html Etching with Air Regenerated Acid Cupric Chloride] — an excellent in-depth page on acid cupric chloride etching by Adam Seychell.
 
* [http://esmonde-white.com/etching_pcb.html Etching a Copper PCB with HCl and H2O2]
 
 
 
[[Category:Techniques]]
 

Revision as of 15:17, 8 October 2007

Nonne puttane Autodromo monza Video gratis sesso con animali Prestito lazio Swan tour sharm Gay che trombano Ciccione troie Marina rinaldi dichiarazione successione Agenzia viaggio tiuccia corsica Hotel boschetto roccaraso Tempesta damore Vecchie troie pelose King of kings motorhead mp3 Hentai sakura Albergo siena centro Roberto bolle Www portale immigrazione Sedia legno suore porche Video segretarie Disegni tribali Meteosat Foto sadomaso Porte interne Lapo elkann Ristorante giapponese-milano Slam dunk Collegamento modem adsl Antonello venditti Decoder dtt sat Ingoio sborra Prestito campobasso Itinerario enogastronomici italia Casa vacanza gallipoli Valturit Addio al celibato Orologio breil Assicurazione alleanza dell agenzia Lerici albergo Hotel strasburgo Foto culi aperti Orologio festina Anteprima video lesbo Incontrare girl ed escort bologna Passere pelose Spiaggie nudiste in italia Scolarette porno Foto annalisa mandolino Dragonball x immagini Club seventeen group Mappa satellitare Jamelia tiziano ferro univeral prayer Gossip calciatore Geova Vientiane ristorante Emmelunga veneto Paranoid black sabbath lyric Motoclub Addobbi palloncini Climatizzatore portatile Short skirt Bristol ristorante Black tits Sesso lesbica Valentina stacy Abbigliamento ciclismo online Albergo mosca centro Orologio cartier Lugano libreria universitaria Trucking job Uniroma1 Cazzo culo Hp deskjet Escort italiane Mosca rossa Inzaghi vip Tivutibi com Cuccia per cani in plastica Femdom Ogenki clinic Arenzano Rinegoziazione mutuo Materasso lattice naturale Avy scott playful bedroom Guida agli agriturismo liguria Anna galiena Serena garitta intervista Dogana svizzera Mononucleosi com Meteo a s pietroburgo Ricerca personale Spagna shemale Parquet ecologico bamflor Pitagora musica Pelletterie Scarlattina Immagine dei scheletro Sunia Foto pisciare Incontri modena Racconti incesto gay Carabbinieri it Milli d abbraccio Video cartoni animati porno gratis Albergo istanbul Inkjet cartridge Happysexo com Pornostar spagnole Vivaio piante Comitato ligure fisi Agriturismo casa vacanza Articolo 31 Xxx tug job Motore asincrono trifase Lettino stokke Nortek Canalis video porno Link www edream it Antifurto motocicletta Casa arredamento Donne arrapate Asian mature Anal sex Viaggio cral Toscana turismo net Porche pompinare Cap elisa triani Intimissimi franchising Gioco online flashgames it Foto fujico xxx Monster dildo Vacanza sport Allinternal sarah Anello in turchese Fighe pelose indiane Susanna torretta nuda Monster black cock Angeli e demoni Topless sara varone Azienda autotrasporti Dalida 1996 perugia Winx club porno Lastminute normandia Vagina aperta Russian-lolita Chattare subito Avezzano Sexy bikini model Albergo genova Gestionale per agenzia viaggi mardi gras tit I testi di francesco guccini Europlex Sfondate anali Solletico piedi Cognata figona Il corriere dello sport Assicurazione ciclomotori preventivi Gioco prezioso cantatu Volo aereo stoccarda Giusy Case vacanza affitti sicilia Amsterdam offerta Vendo dobermann Lo chiamavano trinita Foto donne vip Video porno professoresse Forum reggina Bellissimi culi Concorso oss albenga Choppers Storia gioco calcio campionato serie Cgilscuola it Smorfia Cristiano angelucci Tagli Qsvs Mallteam Alloggi economici Wwwunicreditbanca Video hentai gay Disneychannel it Gaydar co uk Pono gratis Residence sardegna vacanza Max biaggi Orologio solario Terme slovenia si Hotel filippine Dove dormire Epson meteo it Donne nude vogliose Celiachia Blu express it Testi di samuele bersani Iper busnago Mature ass fuck Batteria samsung sgh e720 Albergo 1 stella budapest geena lee nolin come avviare un apicoltura keita vs martin solveig madan video della guerra notty play en the noise ninfe olimpus c 480 masterizzatore dvd 16x ap400 toner usb decoder digitale dance news 7 ferdi copertina cd veline hotel a bucarest tchatche com ghiaccio blu blue ice toiletes arco di luminara still alive wave to the 80s video decapitato download abrixas extra e tettona materassi ortopedico quattrochi testi di grease in italiano ilva italimpianti medmar boville ernica bosch frigoriferi ad incasso lithuanian airlines televisori mivar 21 flat i calci di rigore corsi di comunicazione mn programma quick time sakic tribali ciondoli tra due risvegli matite colorate midwestern hard disk 250 eide dolce e gabbana sposa usb motorola c550 pandemonium 2 jennifer paige these days re pandilla ricambi philips conference call lavoro part time a padova dal fabbro beniamino cucine arte povera hd maxtor 250 gb guns don t cry sack gustav toyota land cruiser autocarro la ricetta di oggi allinea lavatrice a regione lombardia leggi clio 1 2 kit ph trucchi ps2 principe di persia foto cher settimo cielo bimbo biondo hard disk esterno 300 gb toca 2 nu sinh nho quyen nicolas barg la bugiarda canon powershot g5 baile del pescao miusic dublino intrattenimento apple cinema 30 bullr laurea breve francesco barretta vivident mutuo conto arancio belle histoire cassette adapter olympus camedia c 470 zoom frist aid nomi squadre one shot 80 vol ragazzo reggio calabria penace gay e transex orge sesso donne grasse nude for so long mary ann proteccion ambiental lemon soda radeon9550 vivo paola perego foto del calendario 2005 fotocamera digitali macchina fotografica lei 23 www guns e rose sure took magik agenzia immobilare pentium iv video porno pamela tell me did you fly away video lo strano percorso smami bmw serie 1 120d futura carte 7 e mezzo lg 5163d le regine dellamore proibito fotos proibidas xxx ristorante tipico clu america david guetta mont turion mt a3 colori stampanti epson le serpent jarabe de palo romeo y julieta girls arezzo cane razza boxer cori del napoli italia calcio hell yeah minuetto boccherini giochi gratis easy laminator www joe t vanelli it nuova opel tigra locali da scmbisti il roveto litalia cerca aiuto su game boy advance gioco danza cappellino di lana chitarra zen santiago cose fare phantom planet california lacie 16x dl dsc f77 cani trasportino codici a barre stampante laser epson epln7000 keita ourinhos summer heat beach volleyball viaggi del ventaglio ampicilina norton internet midi saoco x9 evolution msm free tastiera wireless optical desktop calciomercato it kenwood robot da cucina vassoio argento lesbo italian elves derryl brother cartuccia toner tn2000 empleos en apodaca nuevo leon abba the last video registratore digitale irradio comment t aimer testo tradotto the reason prodotti viso shiseido mondiali calcio telechargement drescher malattie midollo spinale motorola sm56 fax modem julia residance nini d angello r1 yamaha 2002 himno nacional del peru the bleck eyed peas midi mujer amante dog end cat bauletto moto jennifer lopez live ati radeon x600xt 128mb athlon64 4800 ursula cavalcante diario di un parroco di campagna wholesale jewelry perversione sessuale con animali sally di vasco rossi universita federico ii napoli scopa elettrica amstrad headbangers ball www togni it mica milano calze ever dream videos de reggaetony cavo alpine iq maraton deviant monitor acer al 1912 il bacio di una morta toshiba 145 logitech pocket como comunicazione mara piromalli hotel bratislava

After masking off the parts of the copper-clad board you want to keep, you need to remove the parts you don't want to keep. This is usually done by chemically etching away the copper. There are a lot of different chemical techniques for doing this, each with its own advantages and drawbacks.

None of these chemicals is incredibly dangerous, but they can all be toxic or caustic, and should be treated with care. Eye protection and gloves are a very good idea. Before you start, make sure you know how dangerous each chemical is, and figure out what you will need to do if you spill it or get it on yourself. Washing with plenty of water is usually a good start. For some chemicals you may want to keep a neutralizing agent handy. An MSDS (Materials Safety Data Sheet) for the chemical will give you some basic information.

Ferric Chloride

This is the most common hobbyist etchant. Ferric chloride, FeCl3, is a brownish substance. It's usually sold in a bottle (dissolved in water, perhaps with a little acid or peroxide) or as a powder (which you have to dissolve in water).

When in solution, ferric chloride is a ferric ion (Fe3 ) and a chloride ion (Cl-). The ferric ion reacts with the metallic copper on the circuit board in a redox reaction, producing a ferrous ion (Fe2 ) and cuprous or cupric (Cu1 or Cu2 ) copper. The chlorine is just along for the ride. The copper ion, unlike the metallic copper, is soluble, so it leaves the circuit board and goes into solution. The reaction products form a black sludge which settles to the bottom of the etching tank. After etching enough copper, all your Fe3 is used up and your solution is full of Cu1 , and you need to get more etchant.

Ammonium Persulfate

Expensive