The phrase "flat latex" refers to a type of paint finish that has a smooth and non-shiny appearance when dry. It is commonly used on walls and ceilings in homes.
I painted the entire piece with flat latex paint and the sides of his dresser with chalkboard paint. (diystinctlymade.com)
You can also make your own using flat latex paint mixed with Plaster of Paris. (diybeautify.com)
I decided to paint with flat latex paint, instead of acrylics since it's a huge canvas... it's almost as big as our dining room table! (paint-me-pink.com)