1/2" Alkaline Resistant Fiberglass, 5 lbs.

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These alkaline resistant glass fibers are designed for use in portland cement-based products to provide reinforcement. They are designed to provide strength and flexibility while enduring the high alkalinity of the lime in concrete. Amount is variable depending on strength characteristics desired. Generally 3-5% to weight of cement is suitable. Fibers are 1/2" long.

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