For split-face, fluted and decorative block, use Seal-Krete Heavy Duty Waterproofer. This hi-solids formula stops water penetration and provides maximum protection for low density concrete and masonry.
Seal-Krete Heavy Duty is rated for both residential and commercial use, and conforms to ASTM E-514 and other tests for wind-driven rain. Seal-Krete Heavy Duty is paintable, long-lasting, environmentally safe, and tintable.

• For low density, decorative concrete and masonry
• 25% solids (high solids formula)
• Maximum protection – stops water penetration
• Binds chalky surfaces, strengthens mortar joints
• Provides tough, flexible, breathable film
• Lowers surface pH on alkaline substrates
• Revitalizes natural colors of surfaces
• Water based, acrylic formula
• OTC Compliant
• For vertical surfaces