AM Conservation Group weatherization sealant product is 100% silicone. This energy efficient sealant remains permanently flexible, will not shrink or crack, is waterproof and can be applied in temperatures of -30 to 140 degrees. Withstands temperatures of 400 degrees Fahrenheit.

This weatherization product is ideal for sealing around areas that fluctuate in temperature, such as ducts or flues.

Details

• 10.1 oz tube
• 50 year guarantee