AcryShield A640 is a unique, fast- setting, multi-purpose, acrylic, elastomeric coating for use over a variety of substrates including asphalt and metal roofing. A640 has “bleed blocking” properties that make it particularly suited for coating over asphalt surfaces, and exceeds several ASTM D6083 requirements for critical properties such as tensile strength, elongation, wet adhesion and weatherability.
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