Stone Mason® Fire Block is a repair mortar and sealant designed to seal fire-rated service penetrations and construction joints in horizontal and vertical fire separations. ASTM E-136-compliant, Stone Mason® Fire Block is ideal for use around wires, pipes, duct work and vents in wood or steel framed non-rated construction, as well as fireplaces, furnaces and chimneys. Features
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To ensure our customers always have access to the most current information, we ask that you contact the Henry Company Customer Support Center at 1-800-486-1278 for more information about this product. |
PreparationAll Surfaces must be dry and frost free. Remove any oil, grease, rust, dirt or other contaminants that may inhibit proper adhesion. ApplicationApply Fire Block Mortar with a trowel or putty knife. Tool mortar surfaces to a smooth defect-free finish using a slightly wetted trowel or putty knife. LimitationsFOR INTERIOR APPLICATION ONLY. Not to be used in areas where there is continuous vibration on the penetrating item. Do not expose to water. Do not install when surface and air temperatures are below 0°C (32°F). Do not apply to frozen surfaces. Prior to use on plastic test for adhesion and compatibility. CoverageApprox. 0.4 m2 (4 sq. ft.) at 3 mm (1/8”) thickness. Clean-UpClean all equipment immediately after use with soap and water. CautionWash thoroughly after handling. In case of eye contact, flush immediately with water for 15 minutes and call a physician. Keep out of reach of children. Keep from freezing. Not for internal consumption. |
The consumer shall satisfy themselves of the suitability of this product for the intended purpose. Weather, applicator's skill and surface conditions are beyond manufacturer's control. We, therefore, limit our liability to replacement of defective material only, within one year of proof of purchase. |