Weldbond Adhesive is a versatile, non-toxic, child-safe adhesive; when blended into concrete or mortar mix, Weldbond dramatically increases the strength of the finished stone. For stepping stones left outdoors in sub-zero temperatures, the addition of Weldbond is ideal for helping prevent cracks and breakage.
Mix 1 part Weldbond to 5 parts water, then add to dry concrete. For stepping stones, this will require approximately 4-5 ounces Weldbond per stone. Mix with concrete, cure and demold.
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