10K81 Non-Toxic High Temp Mill-Pac Black Sealant for Direct Vent Fireplaces

The 10K81 is a tube of high-temperature Mill-Pac Black sealant. This chalking sealant is formulated to be environmentally friendly and non-toxic, making it a genuine green product.

10K82 is commonly used to seal cracks and apply an air tight seal onto direct vent gas fireplaces, heaters, gas stoves, and other high-temperature appliances.

The sealant has a maximum operating temperature of up to 1050°F (565°C.) It resists corrosion and is inert when exposed to common combustion biproducts.