Heavily Fibrated Asphalt Mastic for General Roof Repairs
Sag-resistant ECOmastic mastic is used to repair and restore flashings and asphalt built-up roofing defects including blisters, cracks and punctures. Strength can added by using reinforcing membranes. ECOmastic is not intended for use as a wet patching material; do not use ECOmastic on coal tar membranes.
ECOmastic is an asbestos-free, asphalt-based, heavily fibrated mastic blended with penetrating oils and plasticizing agents.