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Perfin-305 prevents air bubbles from forming on the concrete surface, improving surface quality and finish. Use the admixture in precast concrete whenever minimum surface defects or high architectural and aesthetic requirements are desired. Perfin-305 also improves durability, enhances aesthetics and uniformity of concrete surfaces, and reduces risk of rejection due to surface quality issues. Sika Corp. 800-933-7452. www.sikausa.com
Booth #722