The MD Building Products Thermalblend 3/8 in. x 17 ft. Weatherseal is durably made from a silicone and EPDM rubber blend that retains its flexibility even in extreme hot- and cold temperatures. It helps seal gaps up to 3/8 in.
- Seals out drafts and dust around doors and windows while helping to save energy
- Enough material for 1 door or 2 average-size windows
- Unique wave profile expands and contracts to seal gaps up to 3/8 in.
- Remains flexible from -40 degrees to 140 degrees Fahrenheit
- High-performance silicone/EPDM rubber blend