Penatech HS Grout is a high strength, non shrink precision Class C grout. Suitable for machine base plates where critical grouting application is required, applications subject to dynamic loads and where continuous vibrations is present, Bridge bearing pads and Crane rail sole plates. Penatech HS complies with US Corp of Engineers Specification of non-shrink grout, CRDC 621-82A and ATSM C1107-91 (Type C).