The new formula DAP Dynaflex 230 is a 100-percent waterproof window, door, and trim sealant. It delivers a silicone tough latex formulation and is flexible to endure expansion and contraction without cracking or losing its seal. It adheres to a wide range of materials such as wood, MDF, PVC, polystyrene, and composite trimboard. It can seal joints up to 1-inch wide, can be cleaned with soap and water, has low odor, and can be used for both exterior and interior projects.