RestoKrete No. 208 substrate repair material from Sauereisen provides a water-resistant barrier for prevention of inflow and infiltration in concrete or brick substrates and manholes. It uses a moisture-tolerant epoxy resin and a blend of cements, and is ideal for filing voids, irregularities and air pockets in concrete substrates. It provides the physical strengths of an epoxy with the efficiency of cementitious substrate resurfacing materials. It is pumpable, sprayable and trowelable, and can be applied by spincast. It is compatible with all Sauereisen epoxies and urethanes. When mixed at the proper ratio, a regular unit will yield 12.48 square feet per bag at 1/4-inch thickness. 412/963-0303; www.sauereisen.com.