Polyurethane foam strip can be manufactured plain, or adhesive backed and is available in a range of custom thicknesses, widths and lengths.
Ether Foam Tape » Urethane Foam Tapes » Custom Cut by LAMATEK
Polyurethane Foam Sealing Tape Manufacturers and Suppliers China
Liquid X-30 Expanding Polyurethane Foam
Gasket Sealing Barton International
Key Features Inhibits the passage of fire through residential utility penetrations Excellent sealing against gas, smoke and energy loss Quick and easy to use Insulating foam sealant polyurethane - fire block size 12 ounces For filling, insulating and sealing gaps, cracks and openings in buildings. Inhibits the passage of fire through residential utility penetrations. Can be used to seal against gas, smoke, and energy loss. Evaluated Per ICC-ESR-3402. Type V residential fire block.
Red Devil 0915 Foam & Fill Fire Block Foam Sealant 12 oz
Polyurethane Rubber Strip - Advanced Seals and Gaskets
Superseal Foam Strip - Custom Superseal Foam Sealing - Ramsay Rubber
3M™ Polyurethane Sealant 540, Gray, 310 mL Cartridge - The Binding
Flexible Polyurethane Foam Tape Open Cell Impregnated Joint
Polyurethane Foam-in-Place Gasketing