Strong-Seal MS-2A from The Strong Co. is a Type I Portland cement-based mix with alkaline-resistant fiberglass reinforcement. It is formulated for applications with a pH of 3.0 or higher, can be used to form a structural monolithic liner covering all interior substrate surfaces and can be hand- or spray-applied. It is a cost-effective solution for stopping infiltration and restoring structural integrity. 870-535-7617; www.strongseal.com.