Check out the MSDS for the ingredients, and tell us what brand and
type of thinner you used, they vary somewhat.
ST
On Sat, Dec 10, 2011 at 7:39 PM, Richard <rdheiliger@...> wrote:
> I accidentally ran across something that appears to help toner transfer. Ran out of alcohol that I use to clean the board before laminating. Tried lacquer thinner, and got great results. I have been able to reduce my laminator temperature from 150 ∗C to 115 ∗C. and get perfect transfers. And for the first time able to do .008 width traces, without them falling off.
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> I use a random orbital sander with 400 grit paper to polish off the corrosion.
> Do a first clean with alcohol, to remove the dust left from sanding.
> Then put a very liberal amount of lacquer thinner on the board, it looks very wet.
> Let the lacquer thinner dry, there is a haze left on the board from the thinner.
> Then do two passes thru my laminator at ~115 ∗C.
> Soak paper off, and etch. When the paper is only heated to 115 ∗C it soaks off much easier.
> The toner is a bit softer and needs a little gentler rub when cleaning the paper, but I can still use a plastic scrubby if I don't press too hard.
>
> Would be interested in finding out if others might get similar results, and if any one knows what material may be left behind after the lacquer thinner evaporates, it must have some kind of adhesive quality. What ever it is does not slow the etch time. Lacquer thinner takes the toner off the etched board very quickly too.
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> RD
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