When rigid flooring materials like tile or stone are installed over a concrete floor, isolating the cracks is critical to success. Merkrete has introduced a liquid-applied membrane that can isolate up to 3/8-inch-wide cracks, preventing reflection through the flooring. Fracture Guard 7000 elongates over 1000% and cures in four to six hours at 70 degrees F and 50% relative humidity. Although most shrinkage cracks in interior concrete floors aren’t moving, if there is any movement, isolating them can prevent cracked tiles. For more, visit www.merkrete.com.