RS MaxPatch, a fast, trenchless, selective point repair system for pipes 3 to 48 inches in diameter from HammerHead Trenchless Equipment, has a long working time and a short cure time. It allows for an ambient cure, as heat or other accelerators are not required for optimal performance. It is appropriate for use with a wide variety of pipe material, including concrete, reinforced concrete, vitrified clay, PVC and asbestos cement. The composite system consists of a specially designed glass-reinforced fabric and two-part ambient-cure silicate resin mixture. It exceeds the structural requirements of ASTM F1216. 800/331-6653; www.hammerheadtrenchless.com.