Mouse Shield contains an EPA-registered pesticide that protects the foam from attack by mice and other pests such as birds, bats and tree squirrels. It also blocks ants, roaches, spiders and bees. Use Mouse Shield to seal gaps and cracks inside your garage, attic, crawl space, basement, under sinks, around pipe/electrical penetrations or any areas where pests, insects or drafts can enter you home and living spaces. Safe to use and contains no odor. Air seals and insulates to save on energy costs. Tack-free in 15 minutes and dries in 4 hours.