What water dilution ratio should I use for coating with a foam roller?
The recommended water to varnish ratio is: 30% distilled water and 70% coating. It is very important that you distilled water, rather that tap or drinking water. The minerals added to drinking water will effect the integrity of the coating. Before mixing the water into the varnish, heat up the water in the microwave. Heating up the distilled water will help improve the effect of the self level agents leaving your print with no roller streaks. It is always safe to have less water than coating. A major problem with coating canvas is users over diluting the coating.
