Approaches to Developing Cold-Cure Polyurethane Adhesives for Gluing Metallic and Nonmetallic Materials

The properties of a polyurethane composition modified with rubber are considered. In terms of its composition and purpose, the adhesive composition is close to VK-11 polyurethane glue. However, the VK-11 grade glue contains polyvinyl chloride resin that is not produced in Russia. It has been shown that the polyurethane composition is capable of curing at a room temperature or in an accelerated curing mode at a temperature of +80°C for 2 h. The testing results for an experimental polyurethane adhesive composition modified with rubber are presented for gluing a number of metallic and nonmetallic materials in the temperature range from –60 to +80°C.