DAP ALEX PLUS acrylic latex caulk plus silicone is an excellent quality, all purpose caulk ideal for sealing a wide variety of interior and exterior surfaces. It contains silicone additives for greater flexibility and adhesion and it shrinks less for a durable, 100% waterproof seal. Paint ready in only 30 minutes to finish the job faster. It is easy to apply and tool, low in odor and cleans up easily with water. Ideal for sealing cracks and gaps around windows, doors, baseboards, molding and trim.