>Stephen Lane wrote:
>Yes it is hard to find a paint that evaporates cleanly, I haven't found one yet but I agree that good extraction or whats called air assist would probably help alot but I haven't been able to make that work on my laser (yet).
Eric has been helping me out a lot recently, regarding the paint that works very well for him.
We think it might be this, but he doesn't have the paint at hand yet to verify:
http://www.rustoleum.com/CBGProduct.asp?pid=415 >By paint thinner I mean what ever is the thinner for the paint you use for most tinned spray paint MEK or Acetone will work the point is if the paint has gone on relativly thick after its been Lased off the residue is very thin so a quick wipe with whatever thinner works usually cleans it off without taking the lot off.
>
Eric also told me that IPA works well to clean off the residue!
I am not very sure about the conc. of the IPA required yet - have read that conc. lower than 99% tends to leave a white reside behind on the copper clad.