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500 Degree RTV High Heat Silicone (Black) - Cartridge

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  • Ready-to-use, pre-mixed, fiber-reinforced, high temperature, silicate mortar.  Passes ASTM E136 and E72.  Use to:  Set, coat or repair firebrick.  Used extensively as the mortar between firebricks when building fireplace fireboxes.  The ideal high-heat sealant for masonry-to-masonry joints less than 1/4" thick.  Can be layered in 1/8" layers (allow 24 hours drying between layers).  Temperature Rating: 2000 degrees Fahrenheit.  Requires heat to cure.  64 fl oz, 6/cs, 50 lbs.

 Product Description

Forms a tough, rubbery seal and maintains its flexibility.  Use to:  Seal fireplace inserts, repair solar panels and flashings, apply ceramic tiles or anywhere a black or translucent permanent elastic seal is needed.  Adheres to glass, metal, most plastics, fiberglass, aluminum, wood, brick, and slate.  Acetoxy cure.  Meets ASTM C920-86.  Black, 10.3 fl oz Cartridge

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