Durez® 28391 is an unmodified thermoplastic phenolic resin of the two-step type (novolac). It has a relatively low free phenol content in order to improve its thermal stability and it is widely used in the rubber industry, with the addition of hexa as reinforcing resin. The product is supplied in pastille form.Information provided by Sumitomo Bakelite High Performance Plastics (sbhpp) |