Foster Fire Resistive C.I. Mastic is a black, tough, durable, high solids vapour barrier and weather-coating for the protection of thermal insulation in outdoor service. Its excellent weather and fire resistance makes it suitable for use in place of conventional asphalt cutback mastic.
It is an ideal surface coating for low temperature insulating applications where the insulation used is not affected by mild solvents.
Operating temperature: -40 to 93°C.