Foster® 40-10™ Duct Linear Adhesive Coating dries to form an effective air erosion preventive coating, sealing and reinforcing the surface of new or aged duct liner insulation materials.

Foster 40-10 is non-flammable when wet and extremely fire resistive when dry. The dry film stays flexible and moisture resistant. It will not cause flash rusting on metal surfaces. Dry Foster 40-10 resists mold, fungus, discoloration from mildew, and stains by mold. Its extremely high level of resistance enhances the longevity of the material.

Foster 40-10 contains no asbestos, lead, mercury, or mercury compounds. It meets NFPA 90A and 90B 25/50 requirements.