Paint washing off
Posted: Thu May 25, 2017 3:17 pm
Hello,
I'm trying to lean the process, and my first attempt looked good... Until it all washed off in a sheet, leaving almost completely clean paper.
I used alum at 10% w/v (10g in 100mL). I wiped it on and left it until it was damp but not dry. Should it be drier perhaps? My alum powder, although dry, is a few years old. Does it go off?
I'm trying to lean the process, and my first attempt looked good... Until it all washed off in a sheet, leaving almost completely clean paper.
I used alum at 10% w/v (10g in 100mL). I wiped it on and left it until it was damp but not dry. Should it be drier perhaps? My alum powder, although dry, is a few years old. Does it go off?