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  • Use to seal and repair boilers, furnaces, flue pipes, stoves, ducts, kilns, chimneys, combustion chambers, and many other furnace and refractory applications.
  • Unique patented clean'n friendly formula meets OSHA's requirement of less than 0.1% of crystalline silica content.
  • Applies exceptionally smoothly.
  • Can be used on oil, gas, coal, and wood-burning heating systems.
  • Adheres to most building materials.
  • When cured, makes positive non-porous fireproof seal.
  • Will not shrink, crack or crumble.
  • Contains no oils, asbestos, or crystalline silica.
  • Available in regular body (non-runny tan colored) cement, and heavy body (firmer consistency, dark gray color).
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128 oz.
Dark Gray
Boiler Repair
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