Two layers of Polyethylene Industrialized Air Bubbles (Poly-Air) are bonded between two layers of highly reflective metalized aluminum polyester film. Industrial strength, lightweight yet durable insulation designed to hold staples without tearing. Does not compress, collapse or disintegrate. Key benefits - Strong insulation with a light, durable construction - Staples stay secure without tearing the material - No sag, compression, or breakdown over time - Reflective outer film supports visible installation and potential thermal performance Materials and construction - Core: Poly-Air polyethylene air bubbles - Outer layers: metalized aluminum polyester film Use scenarios - Installing insulation panels in walls, ceilings, or ducts where staples are used - Attaching reflective insulation or vapor barriers to equipment, cabinets, or HVAC components - Packaging or crating where insulation must remain intact during staple driven assembly