Neoprene GRT polychloroprene rubber Dupont Dow Elastomers Rubber - Elastomer >> Chlorinated rubber / Chloroprene, CR ADHESIVE Adhesives Neoprene GRT is a sulfur-modified, crystallizationresistant chloroprene copolymer stabilized with a thiuram disulfide and a nonstaining antioxidant. It is slower in crystallizing than other G types. Neoprene GRT has the greatest resistance to crystallization of any of the G types. Thus, the raw polymer, and stocks and vulcanizates prepared from it, remain soft and flexible longer, particularly at low temperatures. Neoprene GRT rapidly breaks down, or softens, and becomes tacky under the mechanical shear imposed during mixing. In addition, it is slow to crystallize, so it remains tacky much longer than Neoprene GNA. Because of its excellent tack retention, Neoprene GRT is the preferred type of Neoprene for friction compounds and other applications requiring good building tack. Compounds of Neoprene GRT cured with metal oxides alone have excellent processing safety, yet cure rapidly. Although not required, cure accelerators can be used and are advantageous for some applications. Properly compounded vulcanizates of Neoprene GRT have high resilience, tear strength, and flex cracking resistance. These properties, combined with its good building tack, have led to wide use of Neoprene GRT in composite structures that are subjected to severe dynamic stresses, such as power transmission belts. Sulfur-modified, crystallization resistant chloroprene copolymer stabilized with a thiuram disulfide and a nonstaining antioxidant. Rapidly softens, and becomes tacky under the mechanical shear imposed during mixing. Provides high resilience, tear strength, and flex cracking resistance in compounded vulcanizates. Can be used in composite structures that are subjected to severe dynamic stresses, such as power transmission belts.