500 RTV High Heat Silicone Sealant in Squeeze Tube - Choose Black or Clear
Suggested uses include use as adhesive for wood stove gaskets, sealing around insulated chimney caps and storm collars, fireplace inserts, gas stoves and glass fireplace screens. May be used anywhere a permanent elastic seal is needed. Will adhere to glass, metal, most plastics, fiberglass, aluminum, wood, brick and slate. Acetoxy cure.

Squeeze Tube $9
Cartridge Tube $15

600 Super Red High Heat Silicone Sealant
Greatly improved adhesion to masonry makes 600 RTV Silicone Sealant the ideal choice for pointing masonry. Won't cause corrosion to copper or galvanized chimney flashings. We use Super Red for sealing gas vent pipe connections. Can withstand temperatures up to 550 F continuously or 600 F for one hour. One hour of heat aging at 600F results in a slight reduction in product hardness and elongation specifications. Meets or exceeds Fed. Spec. TT-S-001543a, TT-S-00230c, A-A-272, Type IV, C.G.S.B. 19 GP-9B and ASTM C 920-86. Caulk tube. Will adhere to glass, metal, plastic, fiberglass, aluminum, wood, brick

#105-76R $18

Furnace Cement
Ready mixed silicate cement. Withstands 2000 degree temps. Non-gritty formula feathers very thin to make metal-to-metal joints smoke-tight and gas-tight. Commonly used with installation and service of wood stoves, furnaces, stokers and oil burners. Great for sealing flues and coal or ash pit doors. Black, non-asbestos.
1 pint tub   #105-64  $9

Fireplace Mortar
Use to tuckpoint between firebricks and repair broken firebricks. Air-set mortar requiring heat (1200 F) for final cure. When properly dried and firecured, becomes brick-hard and brick-strong. Joints should be as narrow as possible, preferably under 1/8". Because this is a high-temperature, ready-mixed product, proper attention to bond widths and heat cure is essential for successful installation. Water soluble until fire-cured, therefore a flue cap is strongly recommended to preclude joint washout

Black, Gray or Buff Color $8

Chimney Masonry Patch
Non-freezing formula. Caulk gun cartridge size tube

#105-89 $10