Order this DAP Alex Plus Acrylic Latex Caulk – White for delivery. Ideal for both interior and exterior all-purpose use where a quality sealer is required. Silicone additives provide excellent flexibility and adhesion for a crack-proof seal. Waterproof and mold or mildew resistant. Easy water clean-up and low odor. Exceeds ASTM C834 specification. Easy-to-use sealant. Interior or exterior use.