Dap 18360 White DAP Dynaflex 3.0 All-Purpose Sealant 9.0-Ounce Tips for a good project: (1) Think ahead (2) Permits are important (3) Have a realistic budget (4) Expect the unexpected, and (5) Know the code An advanced sealant specially formulated with Kwik Dry technology Allows exposure to water and moisture after only three hours without washing out Ideal for sealing gutters, drain spouts, lapjoints, roof vents, flashing, aluminum sliding and other metal surfaces Mold and mildew resistant Permanently watertight and weather tight