Re: Liquid Emulsion Questions
Polyurethane varnish also works pretty well with liquid emulsion. As John
mentioned, I would recommend coating the entire board to completely seal
it from the chemistry...that way the wood won't warp.
On Sun, September 24, 2006 10:20 am, John Cremati wrote:
> I have coated wood with thick layers of a diazo emulsion in
> past....... What I did was to apply numerous coats of a sandable sanding
> sealer to the wood sealing it totally....... I only needed it done on the
> front but from what I can see in your case, you would have to do the
> piece......... I imagine lacquer or shellac would work as well.... The
> time frame may be limited though depending what you use........... If you
> not do this you will get sever warpage beginning almost immediately even
> you just coat the surface......
> Is it possible that you just coat only the front surface using a
> brush on method and then create a dam around the peice to devlelope , fix
> and rinse.....
> Also You could build a recirculating flood system by just drilling
> small holes over a length of PVC, caping it at one end and then run a
> to a small pump and well in some sort of tray set up.......This would
> minimize your chemicals and you could just tape of the back using visquine
> or cut a piece of plastic plexi and tape that in place......
> You may also want to look into Sandy King' s method of coating paper for
> Carbon Printing .
> John Cremati