You can use this liquid latex to protect the backing of projects as you do an epoxy pour. Remove the latex once the epoxy has dried in order to keep the surface dry and free of drips. You can also use the liquid latex to mark off areas you don't want to paint in order to leave a crisp design with clean lines. It is best used on non-porous surfaces like epoxy, urethane, glass, fiberglass and canvas.Details:Opaque8 oz. (237 mL)10 to 30 minute dry time per coatNatural rubber latexFor use on non-porous surfacesConforms to ASTM D-4236NOTE: May cause eye and skin irritation.