MasterSeal 581 is a portland cement-based coating for concrete and masonry that resists both positive and negative hydrostatic pressure.​ Polymer-modified with MasterEmaco A 660, MasterSeal 581 creates a low maintenance and highly durable waterproof barrier.

Features

• Waterproof to help protect building interiors from dampness and moisture damage
• Breathable, allowing interior moisture to escape without damaging coating

50 lb bag