Blocks pests such as spiders, ants, bees, cockroaches, mice, and other rodents from entering the home by sealing gaps, cracks, and holes (up to 1″) where they commonly enter. Forms a long-lasting, airtight and water-resistant barrier to both block out pests and airseal the home making it more energy efficient. Interior/exterior use. Bonds with most building materials and surfaces. Trimmable, sandable, and paintable. Safe, nontoxic, does not contain pesticides. 12 oz. can.