Red Devil foam & fill expanding Polyurethane foam sealant expands to fill holes, cracks, gaps and voids around windows, door, pipes, outlets, vents and foundations. This insulating foam forms an airtight, waterproof bond that seals out drafts, moisture and pests. Minimal expanding foam & fill is perfects around windows and door sills. Help to prevent drafts that sap heating in the winter or allow cool air to escape in the summer. Once cured, the foam can be sanded, painted or stained. It contains no CFC”s, so it is safe for the environment. FEATURES: Fills holes and cracks: Insulates and prevents drafts: Seals out insects and pests: Quick & Easy to use: Saves energy: Interior/Exterior. USE ON: Windows and door frames: Electrical outlets: foundations. Air and heating vents: Pipes & plumbing fixtures: exterior walls.