The Permacast engineered fine aggregate cementitious liner and polymer coating system from AP/M Permaform is centrifugally cast from a robotic applicator. The high-strength, corrosion-resistant liner is applied at the best thickness (1/2 to 2 inches) for the condition, depth, traffic loading and groundwater pressure of the existing structure. For added protection, ConmicShield antimicrobial additive is added to prevent Thiobacillus bacteria that produce sulfuric acid in sanitary sewer systems, providing long-term protection of concrete structures. 800/662-6465; www.permaform.net; Booth #2048.