Roman PRO-999 Rx-35, Sealer/Primer for Porous Surfaces, 1 GallonCondition:* New Stock, In OEM Packaging. As Pictured.Additional Notes:* Quantity: 1 Gallon (3.78L)* Seals drywall, contractors flat paint and old wallpaper paste residue* Seals and locks down textured walls and popcorn ceilings* Use as primer over skim coats, spackling or mud joints* Dries with slight residual tack, enhancing adhesion of wallpaper* Dries Clear-Matte Finish* Low Odor, No Spatter* Water-Based* VOC (Regulatory): < 25 grams/liter* Covers approximately 400 450 square feet per gallon, depending on the porosity of the surface.* Dry Time: Minimum Dry Time: 3 Hours Optimum Dry Time: 12 Hours Low temperature, high humidity and poor ventilation will slow down the drying process.RomanPRO-999 Rx-35