Seal drafts and boost energy efficiency with fast-curing, closed-cell spray foam insulation designed for DIY ease and pro-grade results. Our 32.8 oz cans and bundle kits reliably fill gaps around attic penetrations, rim joists, wall cavities, and garage doors, delivering rigid, moisture-resistant insulation that won’t sag over time. A single can covers up to 20 board feet, so you can plan projects and material needs with confidence. Pair your cans with a PTFE-coated foam gun for precise flow control and cleaner application. Free U.S. shipping on every order. Shop single cans, 6-packs, and 12-pack kits to save on larger jobs.