SuperSeal was developed as an economical, fast-drying sealing agent for a variety of porous surfaces including gypsum plasters, concrete and wood. This sealing agent will quickly and effectively seal surfaces without interfering with surface detail. The new formula offers better performance and faster evaporation. Mold rubber (polyurethane, silicone or polysulfide) can then be applied. Safety - CONTENTS FLAMMABLE: Keep product away from flame and all ignition sources. Use in a properly ventilated area (room size ventilation). Wear safety glasses, long sleeves and rubber gloves to minimize contamination risk. Store and use material at room temperature (73°F/23°C). This product has a limited shelf life and should be used as soon as possible.