Quikrete® FastSet™ anchoring epoxy is a gray solvent-free, low-odor, high strength, moisture insensitive, non-sag epoxy. Quikrete® FastSet™ anchoring epoxy is ideal for vertical or horizontal applications, including anchoring bolts, threaded rods and rebar dowels into concrete and masonry substrates. Ideal for fastening in grout filled block and unreinforced masonry and seismic anchoring and bracing.