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Old 19th June 2008, 05:00 PM   #41
Elkaid is offline Elkaid  Canada
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Hey guys,

When I first suggested the method using Vitrea paint, I was using standard brushes. The results were OK but since the Vitrea paint is thick, the result were not as smooth as a real soldermask.

Recently, I tried a low-cost airbrush (Vitrea paint needs to be thinned a little) and the results are far more smoother. You can find those airbrush in any Walmart or model shop.

Give it a try if you're having troubles getting a smooth finish or if you lack patience as I do.

In the following weeks, I'm going to try various foils found at www.pulsarprofx.com. They have green and white foils for soldermasking and "silkscreening".

http://www.pulsarprofx.com/PCB/a_Pag...TRF_Foils.html

I'm not very fond of toner transfer system but their results looks promising.

What interests me the most is the fact they also carry a line of transfer foils on which you can print full color images then transfer them on anything (PCB, metal enclosures etc...). May be handy to give a profesionnal look to face/back plate etc.
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Old 19th June 2008, 05:05 PM   #42
Elkaid is offline Elkaid  Canada
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Quote:
Originally posted by Magura

The Vitrea can be applied with an airbrush, I consider that a major benefit.

Magura
OOps ! Sorry Magura I thought I had a good idea but looks like you've been faster than me (by a few months)

Have a nice day !
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Old 19th June 2008, 08:03 PM   #43
qwerty is offline qwerty  Italy
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hey guys
I find a new metod that is used in industry.
go to:
http://www.pcbhobbyist.com/
This autor uses a DFSM (Dry Film Solder Mask). Can you place the foils directly with pouche office laminator....

I Hope that I help you. Bye
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Old 19th June 2008, 08:20 PM   #44
Nordic is offline Nordic  South Africa
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Sakis, what is the green spray you use? I can only seem to find clear plastic coating sprays here...
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Old 19th June 2008, 10:23 PM   #45
Elkaid is offline Elkaid  Canada
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Quote:
hey guys
I find a new metod that is used in industry.
go to:
http://www.pcbhobbyist.com/
Wow, those photoresist film looks interesting. I tried spray photoresist in the past but the results are way too much inconsistent.
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Old 9th April 2009, 01:42 AM   #46
lmao is offline lmao  Hungary
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Lightbulb masking

Hi,

I have found out that Pebeo Vitrea can be easily masked with the toner transfer method.

Masking:
Click the image to open in full size.

Painting:
Click the image to open in full size.

Removing the mask after cooking:
Click the image to open in full size.

Click the image to open in full size.

Basically it works as a solder mask (doesn't burn away), but I can solder it through if I really-really push the soldering iron into it. Have you also experienced this, or was it only me who didn't bake it enough? (I didn't have a thermometer to measure the temperature with)
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Old 9th April 2009, 09:20 AM   #47
Magura is offline Magura  Denmark
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Default Re: masking

Quote:
Originally posted by lmao


Basically it works as a solder mask (doesn't burn away), but I can solder it through if I really-really push the soldering iron into it. Have you also experienced this, or was it only me who didn't bake it enough? (I didn't have a thermometer to measure the temperature with)

You just need to bake it at 180C, then it will won't melt later, unless you do something real unfortunate.


Magura
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Old 9th April 2009, 11:24 AM   #48
Elkaid is offline Elkaid  Canada
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Quote:
I have found out that Pebeo Vitrea can be easily masked with the toner transfer method.
Wow ! Good idea

Can you explain wow do you remove paint/toner over pads. Just by heating ?
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Old 11th April 2009, 01:41 PM   #49
lmao is offline lmao  Hungary
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The mask can be removed after baking by rubbing it with paint thinner or acetone.
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Old 31st July 2009, 06:09 PM   #50
jaydmdigital is offline jaydmdigital  United States
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I had some Techniks Press-N-Peel blue that I tried to use as a mask for the pads before painting with the Vitrea. Was taking too long and the results were poor so I just went at it with a narrow brush and a shaky hand It bakes up well but the uneven blobs of paint bothered me so I tried to sand them down a bit. Don't do this It dulls the gloss and makes it look awful. I think I'll mill another circuit and try the PNP blue again.

lmao are you using photo paper?

Jay
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