Polyurethane foam strip can be manufactured plain, or adhesive backed and is available in a range of custom thicknesses, widths and lengths.
CNC and Modeling Foam (Rigid Polyurethane Foam) - High Density 8lb
Superseal Foam Strip - Custom Superseal Foam Sealing - Ramsay Rubber
Foam Gasket Material Solutions for Energy Control
ISOLOSS LS Polyurethane Foam – 3M
Grey Polyurethane Foam Tape Weatherstrip (1/4 Thick x 3/8 Wide x 17' L)
Perfect Product Door Weather Stripping Soundproof Door Seal Strip V-Shaped Foam Kerf Weather Stripping Door Frame Weather Stripping for Doors Windows, Card Slot
Polyurethane Foam Gaskets - Custom Gaskets - Ramsay Rubber
Ramsay - Gasket Manufacturer UK
Adhesive Backed Open Cell Grey Polyurethane Foam Tape Weatherstrip Highly Compressible Fits One Average Door or Window Reduces costly heat of air
Grey Polyurethane Foam Tape Weatherstrip (1/4 Thick x 3/8 Wide x 17' L)
DAP 7565002600 Touch N' Seal® 600 Low GWP 1.75 PCF FR ICC
The Ultimate Guide to Spray Foam Roofing