Surface Coating of Concrete by Using Polyurethane Resins.

This is a description of techniques employed in East Germany to cover concrete structural members, such as steps, roofs, etc, in order to improve the quality and protect the wear of materials. Polyurethane formulations used are given and performance of coated parts is discussed. Recommendations for practical uses in reference to material compositions as well as to processing technology are included. Uses of polyurethane foam is also mentioned, particularly in roofing applications.