Homebrew PCBs

Pardon my ignorance, but are you using a liquid resist?
If so, can you tell me what it is, and where you get it?

Thanks

Roland F. Harriston, P.D.
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On 4/2/2013 5:50 AM, Alex Hun wrote:
>
> Been using the Seno 100 photo resist applicator to sensitize some pcb 
> board stock. Main problem I find is getting an even coating.  The 
> applicator sponge is fed from a valve in the main body when you push 
> down. If that happens you get flooded in resist but just before you 
> are starved, so the coating tends to be very variable in thickness 
> from board to board and also on a single board as the stuff tries so 
> quickly it does not level very well.
> Only trick I found so far is to keep the resist in the fridge to slow 
> down the evaporation process as much as possible.
>
> Anybody got any other tips or tricks on how to get a good uniform, 
> preferable thin, coating using this system?
>
> Thanks
>
> Alex
>
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>
> 



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