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Keim Exterior Mineral Masonry Paint, Black #9008, Quart

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Mineral Masonry Paint is a low-maintenance, pure potassium silicate paint that delivers extreme durability, color stability and a beautiful mineral matte flat finish. Mineral Masonry Paint penetrates deep within and onto the masonry surface for permanent adhesion, literally becoming part of it. The mineral microporous surface breathes and lets moisture from the masonry surface freely escape so it will never blister or peel. It never traps moisture in your walls. The high pH (alkaline) surface is naturally mold and mildew resistant, toxin-free, and environmentally friendly. Keim, the inventor of mineral silicate paints more than 140 years ago, first formulated Mineral Masonry Paint in the 1960’s. Today it delivers decades of successful track record and you can count on mineral colors that will not fade for decades on end. 20-year Warranty.

KEIM Mineral Masonry Paint has a proven track record of extremely long-life. The potassium silicate emulsion binder provides excellent weather resistance and color retention. Colors are non-yellowing and won’t fade, no matter how harsh the U.V. exposure. It is also impervious to acid rain and other environmental pollutants.

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  • Paint breathes, will never blister or peel from moisture
  • Extremely resistant to freeze thaw
  • Self-priming, two coat system is easy to use
  • Ultra U.V. Resistant–colors last for decades without fading
  • No VOC’s or other added chemicals
  • 20-year Warranty
More Information
Manufacturer CodeGR-9008-32

Coverage - New or bare brick, stone, stucco and fiber cement surfaces must be porous. Surfaces treated with water repellents may not be paintable, especially if recently applied. Surfaces must be absorbent. Test by wetting surface with water to ensure the water is absorbed into the surface. Mineral Masonry Paint should be applied in two separate coats for maximum durability. Coverage will vary depending on the porosity and texture as well as application methods, equipment used and workmanship.

Quart - 55-70 ft2

Gallon - 225-275 ft2

5-Gallon - 925-1375 ft2

Application - The substrate must be sound, solid, dry, clean and free of dust, grease, oils, salts, moss, algae and other substances that would prevent penetration and bonding. Previously painted surfaces must be primed with Keim Exterior Mineral Bonding Primer. Clean up splatters and spills immediately as dried paint is almost impossible to remove from masonry, concrete, glass and metal surfaces. Mineral Masonry Paint is a 2 or 3 coat system formulated for exterior use on new or bare, absorbent mineral surfaces. It is ideally suited to masonry, brick and stone as well as aged concrete substrates, CMU, cement boards, plasters and Portland Stucco. It is ideal for historic restoration, maintenance and new construction in most climates. It is not suitable for use over previously painted surfaces of elastomeric, oil-based or lacquers and varnishes, or fresh concrete without a suitable primer.

Stir Mineral Masonry Paint until smooth and homogenous. Use a paint brush to cut in around edges and corners then use a paint roller to apply paint to remaining area. It is best to roll into damp cut in paint to avoid creating a “ridge” between dry and wet paint. Apply paint in an even coat with no runs, sags or holidays. Avoid drips, spills and painting adjacent areas. is eady to use, apply as supplied. May be applied by brush, roller or airless spray. Brush - Use a nylon/polyester brush—this application method will produce the most mottled or tone-on-tone appearance. Roller - Use a 1⁄2"" to 3⁄4” nap synthetic roller cover. Airless Spray — this application gives the most uniform finish. Pressure: 3000 psi, minimum. Tip: .029-0.031 in, minimum, Remove filters from gun and pump, use 30 mesh filter on siphon tube only.

Dry Time - Dry to touch: 2—6 hours; Recoat: 12–48 hours

Clean Up - Clean spills, spatters, hands and tools immediately after use with soap and warm water. After cleaning, flush spray equipment with a compliant cleanup solvent to prevent rusting of the equipment. Tools should be kept in the paint material or in water during work breaks.

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