The RS MaxPatch trenchless, selective-point repair system from HammerHead Trenchless Equipment, a Charles Machine Works Company, is designed for circular or oval sewer and stormwater pipes 3 to 48 inches in diameter, including concrete, reinforced concrete, vitrified clay, PVC and asbestos cement. The composite consists of a glass-reinforced fabric and two-part ambient-cure resin mixture that exceeds the structural requirements of ASTM F1216. The resin is odor free, styrene free and VOC free. 800/331-6653; www.hammerheadtrenchless.com.