• EXPERT® Mastics

    EXPERT® Mastics

    Knauf Insulation EXPERT Mastics are specifically designed for use with our Earthwool Pipe Insulation, or on commercial and industrial ASJ and ASJ+ jacketed insulation products. Our Weather Barrier Mastic and Vapor Retarder Coating are heavy-bodied, water-based, vinyl acrylic, general-purpose mastics that can be used in both, interior and exterior insulation systems.