Seal windows and doors like a pro with NO WARP™ Foam — specially designed for areas where frame stability matters. Unlike regular polyurethane, it expands gently using self-venting technology that prevents pressure damage. The result: a durable, airtight seal that boosts energy efficiency, reduces heat loss, and helps prevent moisture problems. With a bright white finish and Class 1 fire rating, NO WARP™ is ideal for both indoor and outdoor use.