Our cartridges Heat Resistant Silicone is perfect for sealing surfaces submitted to high temperatures such as any flexible joints around your flue components, such as the roof flashing or trim plates. This Heat Resistant Silicone can withstand temperatures up to up to 315°c. It comes in a 310ml cartridge and weighs 10.9oz.

This makes it easy to apply to your flue components, and ensures that your flue parts will remain firmly in place and tightly sealed over time, despite any minor movement of your flue parts.