Delta Ceramcoat Prep products help with preparing your surface. This sealer prepares wood, paper mache, plaster, ceramic bisque and other porous surfaces for painting. Lets you use fewer layers of paint and the paint adheres easier to sealed surfaces. Details:Dries clear and matte8 fl. oz. (236 mL)Water based for easy clean-upLow odor and is nontoxicThis sealer can be sanded for an even smoother surface