CS-309 is a colourless transparent curing and sealing compound formulated from acrylic polymers and quick-evaporating solvents. When applied on freshly placed concrete it forms a tough uniform moisture retentive film, which simultaneously cures and seals the concrete.

• Product container provides all application information. Read and follow all instructions and precautions.
• Apply by sprayer, long nap roller, soft bristle broom or lamb's wool applicator. Standard garden-type sprayers, equipped with a neoprene hose and gaskets are recommended for best results.
• Apply CS-309 as soon as all surface water has disappeared and the concrete surface will not be marred by walking workmen. Apply evenly over entire surface; avoid puddling in low areas. Restrict foot traffic for at least 4 hours preferably, 12 hours.
• CS-309 should not be applied during high temperature conditions in direct sunlight. These conditions cause rapid evaporation, which does not allow the film to form properly. Under these conditions, the film may peel, bubble, and/or turn white (blush).
• CS-309 should not be applied to concrete exposed to excessive moisture. Entrapped moisture in a solvent based sealer may cause the film to peel and/or turn white (blush).
• For greater protection and higher sheen, apply a further coating of CS-309 and/or apply a coating of HIAC allowing 7 days between coats