This Super Red High Temperature Sealant by Rutland comes in a 10.3 oz cartdridge of RTV silicone sealant. Super Red is a neutral cure - which has no odor - and is their ultra-performance sealant formula. This sealant dries red to match some types of masonry, brick, and other red surfaces and forms a tough rubbery seal, and retains its flexibility even in heat environments of up to 550 degree Fahrenheit continuously and 600 degrees intermittently. This formula will adhere to glass, metal, plastic, fiberglass, aluminum, wood, brick and slate.
10.3 oz. cartridge of Super Red RTV high temperature silicone sealant
Super Red is a neutral cure (no odor) ultra-performance sealant
Dries red to match some types of masonry, brick, and other red surfaces
Forms a tough rubbery seal, and retains flexibility even in heat environments of up to 550 degrees Fahrenheit continuously and 600 degrees intermittently
Will adhere to glass, metal, plastic, fiberglass, aluminum, wood, brick and slate
Excellent adhesion to masonry makes this sealant the ideal choice on chimneys and flashings
No harsh odor - perfect choice for application in confined areas
By mike montagne from Sumpter, OR on November 9, 2012
I've seen our stovepipe get to a dull red color, indicating probably around 1,200 degrees. I'm wondering if this sealant gives off any toxic or carcinogenic chemicals at any heat, either during regular usage (perhaps usually 250-350 degrees) to the exceptional (rare, but possible) 1,200 degrees or so?
Also, should our stovepipe reach this range, what would the consequence to this sealant be?
By Collin C. - NFI Master Hearth Professional on November 9, 2012
Depending on the stove, it is indeed possible to achieve temperatures of 1,200 degrees or greater. Single wall stovepipe can indeed glow red during extended burns. This sealant would not give off any harmful vapors with high heat; however, it could separate if overheated by more than a couple hundred degrees.
I would recommend using a high temperature furnace cement, such as Rutland Pre-Mixed Black Furnace Cement. This type of product can readily handle the high flue temperatures your stove can generate.
Super Red 600-Degree High Temperature Sealant in a 10.3 Oz. Cartridge