Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Don't think that I got the last message.

The ink that I used was specifically Sericol Fast Dry Enamel, White.
http://www.sericol.com/GraphicScreen/GSImages/PDFSheets/Solventbased/Fas
tDryEnamel.pdf

I also bought some Nazdar gloss white enamel ink, don't have the link
handy right now, that I think would work as well, but would dry slower.
I believe that a period of "baking" the ink with either an infrared
heater or an oven might improve the hardness and the ink's resistance to
lifting in the etch. I am not so sure that the type of ink is critical,
as long as it is solvent based rather than plastisol or water based. If
a person could find a lacquer that was thick enough to silkscreen with,
it would probably work. Silkscreen ink is THICK. About like mayonnaise
but not quite peanut butter. When you scoop some out of the can, the
hole fills in fairly slowly. I don't think normal paint, (runny) would
work. In fact, I know it won't since I tried it a few years ago and it
made a real mess. I don't know what country you live in, but I am sure
that any screen printer will have access to an ink that he has to clean
out of the screen with mineral spirits or lacquer thinner or some other
solvent that stinks a lot. With either Nazdar or Sericol ink, you are
supposed to thin the ink with about 10% of solvent. It is still a lot
thicker than paint.

Hope this helps.

Kevin



-----Original Message-----
From: Homebrew_PCBs@yahoogroups.com
[mailto:Homebrew_PCBs@yahoogroups.com] On Behalf Of juanabba
Sent: Friday, March 23, 2007 10:51 AM
To: Homebrew_PCBs@yahoogroups.com
Subject: [Homebrew_PCBs] Re: paint board cooper image using silk screen
- someone with experience

> > Kevin
> hi Kevin
> Thanks a lot for the comprehensive answer.
> I am trying to get the elements down here ( or finding a local
> replacement ) so I can try out your method.
>
> The doubt I have at this moment is the ink you use to silk screen the
> cooper after producing your mask.
> You mention "white solvent based glossy ink"), is that the correct
> spec????
> But before I understood you use either
> a> fuji (sericol) quick dry enamel ink
> or
> b> Nazdar ink would be fine to
>
> can you pls clarify this.??
>
> Thanks again, you are being extremely helpful
>
> best regards
> juan
>

hi Kevin
sorry for coming back to question
can you pls look at my last question above
best regards and thanks again
juan



Recent Activity

∗

25
New
<http://groups.yahoo.com/group/Homebrew_PCBs/members;_ylc=X3oDMTJmbWZlbn
VpBF9TAzk3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBHNlYwN2dG
wEc2xrA3ZtYnJzBHN0aW1lAzExNzQ2Njg2ODA-> Members

Visit
<http://groups.yahoo.com/group/Homebrew_PCBs;_ylc=X3oDMTJlMjgxcWo0BF9TAz
k3MzU5NzE0BGdycElkAzQ1MDUzNjEEZ3Jwc3BJZAMxNzA1MDgzMjkxBHNlYwN2dGwEc2xrA3
ZnaHAEc3RpbWUDMTE3NDY2ODY4MA--> Your Group
SPONSORED LINKS

∗Printed
<http://groups.yahoo.com/gads;_ylc=X3oDMTJjN3MxdDMzBF9TAzk3MzU5NzE0BF9wA
zEEZ3JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA3NsbW9kBHN0aW1lAzExN
zQ2Njg2ODA-?t=ms&k=Printed+circuit+board&w1=Printed+circuit+board&w2=Ele
ctrical+engineering+software&w3=Electrical+engineering&w4=Electrical+eng
ineering+career&w5=Bachelor+degree+electrical+engineering+online&c=5&s=1
78&g=2&.sig=mV9PE82hdSlE9-KTSgm01w> circuit board

∗Electrical
<http://groups.yahoo.com/gads;_ylc=X3oDMTJjY2NxMWFtBF9TAzk3MzU5NzE0BF9wA
zIEZ3JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA3NsbW9kBHN0aW1lAzExN
zQ2Njg2ODA-?t=ms&k=Electrical+engineering+software&w1=Printed+circuit+bo
ard&w2=Electrical+engineering+software&w3=Electrical+engineering&w4=Elec
trical+engineering+career&w5=Bachelor+degree+electrical+engineering+onli
ne&c=5&s=178&g=2&.sig=OLCPaWpTecxApgvDRoZHwA> engineering software

∗Electrical
<http://groups.yahoo.com/gads;_ylc=X3oDMTJjZTNsOWo2BF9TAzk3MzU5NzE0BF9wA
zMEZ3JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA3NsbW9kBHN0aW1lAzExN
zQ2Njg2ODA-?t=ms&k=Electrical+engineering&w1=Printed+circuit+board&w2=El
ectrical+engineering+software&w3=Electrical+engineering&w4=Electrical+en
gineering+career&w5=Bachelor+degree+electrical+engineering+online&c=5&s=
178&g=2&.sig=8dKyV5lpIuBKDZx8cuB2nA> engineering

∗Electrical
<http://groups.yahoo.com/gads;_ylc=X3oDMTJjZXJkNWl1BF9TAzk3MzU5NzE0BF9wA
zQEZ3JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA3NsbW9kBHN0aW1lAzExN
zQ2Njg2ODA-?t=ms&k=Electrical+engineering+career&w1=Printed+circuit+boar
d&w2=Electrical+engineering+software&w3=Electrical+engineering&w4=Electr
ical+engineering+career&w5=Bachelor+degree+electrical+engineering+online
&c=5&s=178&g=2&.sig=0iY88q82jkWYGIpFDG2Lxg> engineering career

∗Bachelor
<http://groups.yahoo.com/gads;_ylc=X3oDMTJjOG4yZHJvBF9TAzk3MzU5NzE0BF9wA
zUEZ3JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA3NsbW9kBHN0aW1lAzExN
zQ2Njg2ODA-?t=ms&k=Bachelor+degree+electrical+engineering+online&w1=Prin
ted+circuit+board&w2=Electrical+engineering+software&w3=Electrical+engin
eering&w4=Electrical+engineering+career&w5=Bachelor+degree+electrical+en
gineering+online&c=5&s=178&g=2&.sig=a6K9-_5jTKoTcsc8PgMl2w> degree
electrical engineering online

Top Scientist

10
<http://us.ard.yahoo.com/SIG=12jrok8ia/M=493064.10322711.10977673.999752
7/D=groups/S=1705083291:NC/Y=YAHOO/EXP=1174675880/A=4438957/R=0/SIG=111o
ctuig/∗http://www.bix.com/contest/5406> Greatest Ever

Share and vote

on Bix.com!

Y! Toolbar

Get
<http://us.lrd.yahoo.com/_ylc=X3oDMTJvYmE1c2hnBF9TAzk3MzU5NzE0BF9wAzIEZ3
JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA25jbW9kBHNsawN0b29sYmFyBH
N0aW1lAzExNzQ2Njg2ODA-;_ylg=1/SIG=11c6dvmk9/∗∗http%3A//toolbar.yahoo.com
/%3F.cpdl=ygrps> it Free!

easy 1-click access

to your groups.

Yahoo! Groups

Start
<http://groups.yahoo.com/start;_ylc=X3oDMTJvY2JmbjZoBF9TAzk3MzU5NzE0BF9w
AzMEZ3JwSWQDNDUwNTM2MQRncnBzcElkAzE3MDUwODMyOTEEc2VjA25jbW9kBHNsawNncm91
cHMyBHN0aW1lAzExNzQ2Njg2ODA-> a group

in 3 easy steps.

Connect with others.

.

<http://geo.yahoo.com/serv?s=97359714/grpId=4505361/grpspId=1705083291/m
sgId=18249/stime=1174668680/nc1=4438957/nc2=2/nc3=3>




[Non-text portions of this message have been removed]