Thermosetting polyurethane elastomer referred to as PU, English name Casting Polyurethane, commonly known as superior glue, spring glue, is a new type of synthetic material between plastic and rubber. . According to the different main chain structure of polyurethane elastomer, it is divided into two types: polyether type and polyester type.
Casting Polyurethane
Thermosetting polyurethane elastomer referred to as PU, English name Casting Polyurethane, commonly known as superior glue, spring glue, is a new type of synthetic material between plastic and rubber. . According to the different main chain structure of polyurethane elastomer, it is divided into two types: polyether type and polyester type.
Polyether PU rod: English name Polyether urethane. Polyether polyurethane occupies the most important position in polyurethane, mainly because of its low viscosity and convenient operation. Polyether is superior to polyester in terms of resilience, moisture evaporation, low temperature performance, impact strength, heat accumulation, water resistance, and mildew resistance.
Polyester PU rod: English name Polyester polyurethane, compared with polyether, mechanical strength, tensile strength, tear strength, sliding friction, oil resistance, heat aging, adhesion to metal, solvent resistance and oxidation resistance are better than Polyether type. However, polyester has high viscosity and is difficult to operate.
