Car insulation is the lightest & most effective thermal sound deadening insulation in the world! It is an EXTREMELY light-weight sound deadener & thermal barrier that creates a quiet, comfortable, and efficient interior for any vehicle. It will keep you cool by reflecting unwanted engine, header, exhaust, & summer heat but it will also keep you warm in the winter! It is extremely flexible & very easy to cut, handle, and install. It is used by professional race teams, restoration shops, & many customers around the world. Our insulation is reinforced on both sides & can be used in ANY VEHICLE in the entire interior including: floor pans, doors, under your carpet/seats, headliner/roof, trunk, trunk lids, firewall (interior side). We have customers using this automotive insulation in many applications such as muscle cars, hot rods, Corvettes, imports, tuners, street rods, rat rods, classic cars, race cars, stock cars, old vintage cars, pickups, trucks, low riders, etc. We even have customers using it in their SUVs, vans, RVs, limousines, campers, boats, motor homes, & school buses. The average four door vehicle uses 140sqft to do an entire install (doors, headliner, trunk, floor pan, etc.)