PRO GUN PLUS™ Acrylic Sealant is a 100% acrylic sealant that can be used on a wide variety of interior and exterior surfaces, delivering superior adhesion and durability. PRO GUN PLUS™ forms a flexible, durable, airtight, water-resistant seal, offering exceptional protection from environmental conditions. Mildew resistant. Low odor and easy to apply. Soap and water clean up with 50 year durability. Exceeds ASTM C-834.