Minimal-expanding foam sealants are the perfect solution for insulating and sealing around windows and doors. These professional-grade polyurethane foams are specially formulated to expand just enough to fill gaps and cracks—creating an airtight, weatherproof seal without exerting pressure on frames. Once applied, the foam cures quickly, becoming tack-free in minutes and fully set within about an hour. After curing, it can be neatly trimmed, painted, or finished to blend seamlessly. Beyond just blocking drafts, it enhances energy efficiency by reducing heat loss, dampens outside noise, resists moisture intrusion, and keeps out pests. Whether you’re installing new windows or retrofitting existing ones, minimal-expanding foam ensures a clean finish, long-lasting performance, and improved comfort.