ChemMasters Safe-Cure & Seal 309 5 Gallon

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Safe-Cure & Seal 309 is a water emulsion, styrene acrylic copolymer curing and sealing compound. Safe-Cure & Seal 309 is low-odor, produces a medium gloss film, cures fresh concrete to ASTM C309 standards, protects concrete surfaces from the intrusion of water borne contaminants and dirt, and is a low Volatile Organic Compound (V.O.C.) water-based product.


  • Effectively cures fresh concrete to ASTM C309 specifications, to achieve the full design strength while minimizing drying shrinkage cracking.
  • Interior concrete where a non-flammable, low odor curing compound is desired
  • Exterior concrete curing where an economical waterbased, easy clean up, formulation is preferred.
  • Seal and dustproof older interior or exterior concrete.
  • Safe-Cure & Seal 309 is very low VOC emission product at <100 g/L VOC.
  • Compatible with most resilient floor covering adhesives (conduct a small test patch to ensure compatibility).
  • Protects concrete surfaces against deicing chemicals, fertilizers, salts, grease, oil, alkalies, mild acids, and detergents.
  • Minimizes spalling due to freeze-thaw cycle exposure, hair line checking, premature cracking, dusting and other common defects that result from improperly cured concrete.
  • May be applied over existing water and solvent based sealers (conduct a small test patch to ensure compatibility).
  • Seals out most construction dirt and stains. Prevents mortar, plaster, and concrete droppings from bonding to concrete surfaces.
More Information
Item Number 1210.05
Weight 50.000000
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