KARNAK #920 Fibered Emulsion Mastic is a general purpose coating, manufactured with refined asphalt, clay emulsifiers, and selected non-asbestos fibers. The dried film cures to a tough, flexible, durable finish and will resist variations in temperature and weather. KARNAK #920 Fibered Emulsion Mastic will not burn or support combustion in a liquid state. This is a low odor coating that resists the absorption of exterior moisture. KARNAK #920 Fibered Emulsion Mastic may be applied to slightly damp surfaces.
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