Description
Secure an exceptional, high-grip foundation for commercial roofing projects with UNIFLEX Elastomeric MB Primer by Sherwin-Williams. This professional-grade, high-build acrylic primer is engineered specifically for application over modified bitumen (MB) roofing sheets, smooth asphalt surfaces, and cap sheets. It acts as an active surface stabilizer, penetrating deep into weathered bituminous layers to seal micro-cracks and bind loose surface particulates into a solid, cohesive base. Formulated with advanced chemical adhesion promoters, it blocks asphalt bleed-through and oily staining, preventing unsightly topcoat yellowing. It creates a flexible, uniform anchor layer that maximizes the bond strength of your final liquid silicone or acrylic elastomeric roof coatings. Its highly elastic structure expands and contracts smoothly with extreme architectural thermal movement, preventing the system from cracking, peeling, or splitting through severe seasonal climate changes.
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