
Multi Purpose One Component Gap Filling PU Foam
They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.
Product Introduction
Our company has set up a customized business, in order to better realize the value of users, and become a leading provider of Cold Casting Polyurethane Prepolyer, 7 Crystal Water Zinc Borate, Casting Polyurethane Elastomer high-end customized integrated solutions. The company works with manufacturers with a common sense to complement each other's advantages and form a stable strategic cooperative alliance. The company actively takes the market as the guide, takes the customer's demand as the starting point, provides the customer with high quality products and services, and takes the continuous improvement, constantly enhances the owner's satisfaction as the eternal theme of the service.
Polyether based Casting Polyurethane prepolymer
1.Polyether based polyurethane prepolymer are recommended for applications where parts undergo dynamic stress, etc, they incur lower heat build-up. They also have advantages in high resilience, low temperature performance and resistance to water attack(hydrolysis). Polyethers also have lower viscosity and specific gravity.
2. Specifications,Application and operation details
PPG/TDI system Casting Polyurethane prepolymer
Item | Type | |||
HJ-1880 | HJ-1885 | HJ-1890 | HJ-1895 | |
NCO% Content | 3.7±0.2 | 4.0±0.2 | 5.0±0.2 | 6.2±0.2 |
Density 25℃/(g/cm³) | 1.10 | 1.10 | 1.10 | 1.10 |
Viscosity 80℃/mpa·s | 500-700 | 500-700 | 400-600 | 150-200 |
Appearance at 25℃ | Colorless transparent liquid | |||
Mix Temperature ℃ Prepolymer /Moca | 80℃/115℃ | 80℃/115℃ | 75℃/115℃ | 75℃/115℃ |
Gel Time /min | 8-12 | 6-8 | 3-5 | 2-4 |
Vulcanization Time (h) | 25-16 | 25-16 | 25-16 | 25-16 |
Physical Properties | ||||
Hardness (Shore A) | 80±2 | 85±2 | 90±2 | 95±2 |
Tensile Strength (Mpa) | 12-15 | 14-18 | 20-24 | 22-26 |
100% Modulus (Mpa) | 7-8 | 8-9 | 10-11 | 11-12 |
300% Modulus (Mpa) | -- | 11-12 | 16-17 | 20-21 |
Elongation at Break (%) | 260-320 | 300-400 | 340-420 | 350-420 |
Tear Strength (KN/m) | 50-55 | 65-75 | 80-90 | 85-95 |
Compression permanent deformation % | 6-8 | 6-8 | 4-6 | 4-6 |
DIN Abrasion loss(mm³) | ≤160 | ≤150 | ≤140 | ≤130 |
Resilience %/25℃ | 20-24 | 19-22 | 18-20 | 16-18 |
- Product application: Rod and bar, sheet and plate, seal, drag roller, caster, grinder lining, pipe lining, miscellaneous parts and other products. - Operation details: After vacuum degasing at 75-85 ℃, the prepolymer is mixed with melted MOCA for casting and vulcanization. It is suitable for manual and mechanical operation. - Storage: Store in a cool and dry place and use up as soon as possible after opening; If it cannot be used up at one time, it shall be sealed with nitrogen; The second opening needs to be used for defoaming, and the original storage period is six months. - Packing: 20kg or 200kg iron drum | ||||
As one of the professional Multi Purpose One Component Gap Filling PU Foam manufacturers in China, we have professional technicians and management team, which can design according to your customized drawings and samples. We actively pursue internal growth and create superior value for customers. We adhere to the principle of fairness, justice and reasonable competition, and adhere to the policy of quality first, customer first, scientific management, and strive for first-class.
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