Homebrew PCBs

ctech wrote:
>  
> (105-115deg it starts to cure, higher and it's all crap) when the 
> color tone changes slightly its junk
>

I tried at 110 degrees 30 mins, no difference, touch dry, soft, doesn't 
UV cure.  No colour change is  observed at any temperature.

Maybe my ink is just different to your ink.

I will try curing an alcohol diluted sample today as I normally would 
under cellophane without baking and see if it can still be cured or if 
it is the changes induced by the alcohol thinning which causes the problem.

>
> Also I just dry the pain enough to apply the mask, it is a little bit 
> sticky but the mask can be moved a little bit, and the paint does 
> stick a little to the mask after curing so masks are one time use only.
Hmmm.  Curiouser and curiouser.  If the paint is sticking to the mask, 
why is it not bonding the mask to the board strongly I wonder, as it 
normally would.  What are you using for the mask?