How Do I Thin Water Based Paint. Add a half cup of room temperature water for each gallon of paint. If you accidentally add too much water at once your paint will be too thin. There is no need to buy anything to thin with just use water to extend working time. At this point the paint has been successfully thinned and is ready to be sprayed.
You will need to slowly add some paint into your paint bucket start with half a cup of paint. Key surface especially when applying over old oil or a previously painted. Stir the paint. Most Rust-Oleum products can be applied by brush roll or spray.
Thin gloss or satin trim paint with water if necessary.
When thinning water based paints such as latex you should be adding 12 cup water to your paint and then thoroughly stirring. How do you thin out wall paint. They are thinned by using water. Pour the paint into a large bucket. Add more thinner if the paint is still too thick. How to thin water-based paint.
