The PC products pc-concrete is a two-part epoxy adhesive paste used to fill and repair cracks in concrete and to anchor threaded rods， bolts and dowels into concrete， grout-filled block and unreinforced masonry in indoor and outdoor applications. The epoxy is made from a high-tack paste that resists moisture for application in damp environments and can be used in vertical applications. After maximum curing， it creates a high-strength bond that will hold during expansion and contraction of concrete. The paste can be painted， stained and machined and is nontoxic and non conductive after it has been cured. Pc-concrete meets American society for testing and materials international (ASTM) c881-99 standards.