Curing in 10 minutes for overlays or coatings, Emecole 555 permanently bonds to concrete in working temperatures up to 100° F. With a strength of more than 4000 psi, it is designed for repairing spalls and cracks in driveways, patios, and garage and basement floors. Low viscosity allows deep penetration into concrete and the repaired area can be put into service or overlayed within 15 minutes of application. Emecole Inc. 800-844-2713.