DAP ALEX FAST DRY acrylic latex caulk plus silicone is specifically formulated to meet the demanding needs of professional painters and deliver outstanding paint finish results. It can be brush painted in 20 minutes after application or painted with a sprayer immediately, so the job gets done faster. This durable, flexible caulk won't crack or discolor paint and doesn't pick up dirt. It applies smoothly and easily, has outstanding adhesion to a wide variety of surfaces and provides a 100% waterproof seal. Ideal for sealing cracks and gaps around windows, doors, baseboards, molding and trim.