Description
Ultimate High-Build Waterproofing Armor for Exterior Masonry
Benjamin Moore® Ultra Spec® Masonry Elastomeric Waterproof Coating is an advanced industrial-grade architectural coating built to shield structural concrete, stucco, and brickwork from severe weather degradation. Spreading noticeably thicker than standard exterior paints, its heavy elastomeric body creates an unbreakable, rubber-like defensive skin that completely seals out driving rains while maintaining the long-term structural integrity of your building.
Best Used For:
• Exterior high-rise commercial structures, warehouses, and industrial complexes
• Above-grade exterior stucco, tilt-up concrete panels, and poured concrete walls
• Split-face block, concrete masonry units (CMU), and architectural brickwork
• Areas subject to extreme wind-driven rain, coastal storms, and freeze-thaw cycles
Key Benefits & Features:
• 300% Elongation Recovery: Remains permanently flexible, expanding and contracting alongside building settling and seasonal temperature spikes to prevent crack telegraphing.
• Hydrophobic Barrier Technology: Exceeds Federal Specification TT-C-555B for wind-driven rain resistance, safeguarding porous masonry cores from water saturation and rebar corrosion.
• Micro-Porous Breathability: Formulated to ensure that while external liquid water cannot enter, internal structural moisture vapor passes through freely to stop blistering and peeling.
• Elite Efflorescence Resistance: Highly resistant to alkali and salt bleed-through, preventing white powdery stains from ruining your exterior color profile.
Technical Specifications:
• Resin Base Type: 100% Acrylic Elastomeric
• Cleanup Solvent: Clean water and soap
• Dry to Touch: 4 to 6 hours | Time Before Recoating: 12 to 24 hours
• Application Method: Airless Spray (preferred for high-build thickness) or heavy roller
• Operating Window: Surface and air temperatures must remain above 50°F (10°C) during application and curing
Choosing Your Finish:
• Flat: Fully non-reflective finish that hides maximum structural concrete defects, layout tracks, and heavy surface texture flaws.
• Low Lustre: Offers a soft, low-sheen luster that provides superior dirt pick-up resistance and easier cleaning maintenance.
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