55-80 Eco-Mastic is a water-based mastic for weatherproofing and protecting thermal insulation on equipment, vessels, piping and fittings. It dries to a tough flexible, fire and chemical-resistive finish that is easily cleaned. 55-80 Eco-Mastic can be used with fiberglass, mineral wool, polystyrene, polyurethane, cellular glass, calcium silicate, and foam glass insulation.
