- Foam Type:Closed Cell Foam
- Density:48.0 - 96.0 kg/m³
- Chemical Family:Natural Rubbers, Polyisoprenes
- Physical Form:Foam
K-FLEX® Duct® Liner Gray is an NBR/PVC-based closed cell, flexible elastomeric foam thermal and acoustic insulation. It is environmentally friendly as it is free of CFCs, HFCs, HCFCs, PBDEs, formaldehyde and fibers. An EPA registered antimicrobial agent is incorporated into the product providing additional protection against mold, fungal and bacterial growth.