• Special properties polyurethane prepolymer
    Special properties polyurethane prepolymer Hydrolysis resistance and low temperature resistant
    Description Hydrolysis resistance and low temperature resistant Key features The material has good hydrolysis resistance and low temperature resistance. Typical properties  Hydrolysis resistance and low Temperature Resistant HRL- 1021 HRL-1022 HRL-1023 Prepolymer Appearance (25℃) viscous liquid Waxy solid Waxy solid NCO Content(%) 5.0~5.5 4.5~5.0 4.5~5.5 Using Mixture Ratio (PHR) 14.4~16.0 13.0~14.5 13.2~15.8 Life in the Reaction Kettle (75~78℃/min) 3~5 8~10 5~6 Physical Properties of Finished Products Hardness      (Shore A) 90±5 90±5 90±5 Tensile Strength (MPa) 34.7 48.2 68.3 Tearing Strength (kN/m) 38.5 112.0 133.1 Elongation at Break (%) 320 380 431 Available Using Environment(℃) -35 -70 -70 Application -Mainly used in the production of water pump parts, marine coating, pipe fittings and other polyurethane products. Usage method -Can be used for manual, but also suitable for the operation of pouring machine, chain extender is MOCA or other chain extender. Attention prepolymer storage should be placed in a low temperature drying place, at higher temperatures (more than 75 degrees Celsius) should not be heated for more than 3 hours. After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal. The storage period of unopened prepolymer is three months.
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  • Solvent resistant
    Special properties polyurethane prepolymer Solvent resistant
    Description Special properties polyurethane prepolymer solvent resistant Key features Can be used for organic solvents, such as esters, toluene, printing ink, water-based ink, ketones, etc. Typical properties  Solvent resistant SR-551 SR-552 SR-553 Prepolymer Appearance (25℃) Waxy solid viscous liquid Waxy solid NCO Content(%) 5.5~6.5 3.0~3.5 3.0~3.5 Using Mixture Ratio (PHR) 16.0~16.6 7.1~8.3 7.1~8.3 Life in the Reaction Kettle (75~78℃/min) 10~12 3~5 3~5 Physical Properties of Finished Products Hardness (Shore D) 55±5 75±5 85±5 Tensile Strength (MPa) 16.6 38.2 44.7 Tearing Strength (kN/m) 23.4 67.5 69.8 Elongation at Break (%) 570 710 512 TOL/EA/CYC mixed solvent 24h expansion rate(%) ﹢15 ﹢9 ﹢10 Application -Mainly used in the production of a variety of special gaskets, seals, high and low hardness printing roller, screen printing scraper, etc. Usage method -Can be used for manual, some products are more suitable for the operation of pouring machine, chain extender for MOCA, E-300, BDO or special chain extender. Attention The prepolymer should be stored at a low temperature and dry place, at higher temperatures (more than 75 degrees Celsius) should not be heated for more than 3 hours. After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal. The storage period of unopened prepolymer is three months. If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
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  • High hardness type
    Special properties polyurethane prepolymer High hardness type
    Description Special properties polyurethane prepolymer High hardness type Key features Material prepolymer viscosity is low, easy to operate. After the molding material has high hardness and elasticity, toughness is good, not easy to crack. In special occasions can be replaced by casting nylon and other high hardness materials. Typical properties High hardness HHN-810 HHN-811 HHN-812         Prepolymer Appearance (25℃) viscous liquid viscous liquid viscous liquid NCO Content(%) 8.0~9.0 8.0~9.0 9.0~10.0 Using Mixture Ratio(PHR) 23.0~26.0 23.0~26.0 26.0~29.0 Life in the Reaction Kettle (75~78℃/min) 1~2 2~3 3~5     Physical Properties of Finished Products Hardness (Shore D) 75±5 60±5 75±5 Tensile Strength (MPa) 37.7 57.5 63.4 Tearing Strength (kN/m) 87.9 187.1 197.2 Elongation at Break (%) 402 331 210 Akron Abrasion (cm3/1.61km) 0.1 0.05 0.05 Application -Mainly used in the production of high hardness polyurethane elastomer products, such as a variety of wheels, mechanical parts, etc. Usage method -Can be used for manual, more suitable for the operation of the casting machine, chain extender is MOCA. Attention The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal. The storage period of unopened prepolymer is three months. If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
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  • High tensile tearing type
    Special properties polyurethane prepolymer High tensile tearing type
    Description Special properties polyurethane prepolymer high tensile tearing type Key features The material has high resilience under high hardness. Typical properties  High tensile tearing type HTT-901 HTT-902 HTT-903 HTT-904 Prepolymer Appearance (25℃) Waxy solid Waxy solid Waxy solid Waxy solid NCO Content(%) 6.0~6.5 7.5~8.5 6.0~6.5 4.5~5.5 Using Mixture Ratio (PHR) 17.0~18.5 7.6~8.6 17.5~18.5 13.2~15.8 Life in the Reaction Kettle (75~78℃/min) 6~8 5~7 6~8 5~6 Physical properties of finished products Hardness (Shore D) 95±5 95±5 95±5 90±5 Tensile Strength (MPa) 65.5 57.2 46.9 68.3 Tearing Strength (kN/m) 122.5 135.7 137.1 133.1 Elongation at Break(%) 380 498 552 431 Rebound Rate (%) 57 58 65 47 Application -It is mainly used in the production of polyurethane products with high hardness and good elasticity. Usage method -Can be used for manual, but also suitable for the operation of pouring machine, chain extender for MOCA or other chain extender. Attention The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used. After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal. The storage period of unopened prepolymer is three months. If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
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  • High resilience and wear resistant
    Special properties polyurethane prepolymer High resilience and wear resistant
    Description Special properties of polyurethane prepolymer with high resilience and wear resistance Key features The material has high resilience under high hardness. Typical properties  High resilience HR-711 HR-712 HR-713 Prepolymer Appearance (25℃) Waxy solid Waxy solid Waxy solid NCO Content(%) 4.5~5.0 7.5~8.5 8.5~9.5 Using Mixture Ratio (PHR) 13.0~14.5 7.6~8.6 8.6~9.7 Life in the Reaction Kettle  (75~78℃/min) 8~10 5~7 6~8       Physical properties of finished products Hardness (Shore D) 90±5 95±5 90±5 Tensile strength (MPa) 48.2 57.2 57.7 Tearing Strength (kN/m) 112.0 135.7 143.5 Elongation at Break (%) 380 498 514 Rebound Rate (%) 55 58 58 Application -It is mainly used in the production of polyurethane products with high hardness and good elasticity. Usage method Can be used for manual, but also suitable for the operation of pouring machine, chain extender is MOCA or other chain extender. Attention The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used. After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal. The storage period of unopened prepolymer is three months. If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
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