MasterSeal 581 is a cement based waterproofing material that forms a brushable slurry when mixed with specified quantity of water, for coating on to prepared concrete and masonry surfaces. The coating cures to form a water impermeable membrane with excellent adhesion to the substrate. For improved adhesion and performance, MasterSeal 581 can be mixed with a solution of acrylic based polymer such as MasterSeal 600. Consult a Master Builders Solutions representative for advice. RECOMMENDED USES MasterSeal 581 is designed to be used as an effective waterproofing membrane on a variety of substrates. Applications include: • waterproof coatings to the internal faces of water tanks, sumps, reservoirs, planter boxes etc., before tiling or other surface finishing; • Treating terraces, balconies, kitchen & toilet floors as a sandwich treatment, to prevent water ingress. FEATURES AND BENEFITS • Resistant to weathering – Suitable for use on both exterior and interior surfaces. • Permeable to water vapors – Allows surface to breathe, preventing buildup of moisture below the membrane. • Brushable consistency – Easy to apply by brush or spray. • Can be polymer modified – Improved bond. strength on a variety of substrates and improve mechanical properties. • Nontoxic – Can be applied on surfaces in contact with drinking water. • Prevents water ingress.- suitable for both positive and negative hydrostatic pressure

How does MasterSeal 583 work? MasterSeal 583 is a dry Portland cement-based dry-modified polymer for smooth coating, providing a smooth waterproofing finish. MasterSeal 583 can be applied easily with a stiff hand brush, broom or spray equipment. What are the recommended uses of MasterSeal 583? MasterSeal 583 applications include: Waterproofing of diverse building substrates Walls Foundations Tunnels Cisterns Pools Basements On blocks, bricks, stone and concrete Concrete Reservoirs of drinking water High tanks Interior and exterior What makes MasterSeal 583 a unique solution? Cement-based Modified with powder acrylic resin Compatible with mineral or cement-based substrates One-component Resists both positive and negative hydrostatic pressure load How can you benefit from MasterSeal 583? Water vapor permeable - MasterSeal 583 is durable and resists positive and negative water pressure, making it suitable for interior use, above and below ground level. High bond strength - It becomes an integral part of the substrate. Good application rate - MasterSeal 583 is cost-effective. Easy and fast application - Mixed with water only; can be brushed or sprayed. Cement-based and solvent-free - Environmentally friendly. Waterproof, seals and protects May be in permanent contact with drinking water Prevents the development of mold and mildew Protects concrete from acid rain Protects reinforcing steel

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