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Add：1-4-304A, 69 Chaoyang Road, Chaoyang District, Beijing 100024
京ICP备2023025914号
京ICP备2023025914号
HD-HR-8610M is double-component PU foam system based on MDI specially designed for high resilience cold cure moulding PU products. B-component is modified polyisocyanate(MDI), while A-component is made up of polyether polyalcohol,blowing agent,catalyst and stabiliser,etc. The systems has three kinds of brands.
* HD-HR8610MH is applied to products with higher hardness and density, such as motor and bicycle saddles, train seats, automobile seats and headrests.
* HD-HR8610MM is applied to products with medium hardness and density, such as automobile seats, furniture chairs,etc.
* HD-HR8610ML is applied to products with low density and hardness, such as automobile seat backrests, sofa backrests,etc.
Physical Properties：
| A Component | B Component | ||
| Item | Index | Item | Index |
| Hydroxy Content (MgKOH/g) | 42±3 | -NCO Content (%) | 24-28 |
| Viscosity (25℃)(MPa.s) | 800±200 | Viscosity (25℃)(MPa.s) | 240±30 |
| Specific Gravity (25℃)(g/cm3) | 1.091±0.05 | Specific Gravity (25℃)(g/cm3) | 1.235±0.05 |
Proportion of Weight：HD-HR-8610MH A:B=100:(57-62)
HD-HR-8610MM A:B=100:(48-57)
HD-HR-8610ML A:B=100:(42-52)
Reaction Time：（Data of Laboratory Test, Working Temperature at 25℃）
| HD-HR-8610MH | HD-HR-8610MM | HD-HR-8610ML | |
| CT（sec） | 10-15 | 10-15 | 10-16 |
| GT（sec） | 60-70 | 55-70 | 50-65 |
| DMT（sec） | 240-480 | 240-480 | 240-480 |
Product Performance：
| 项目 | HD-HR-8610MH | HD-HR-8610MM | HD-HR-8610ML | Testing Method |
| Overal Density (kg/m3) | 75-90 | 55-75 | 40-55 | ISO845 |
| Tensile Strength (KPa) | ≥100 | ≥145 | ≥100 | ISO1780 |
| Extensibility (%) | ≥100 | ≥130 | ≥100 | ISO1926 |
| Tearing Strength (N/m) | ≥150 | ≥200 | ≥120 | ASTMD3754 |
| Fallen Ball Resilience (%) | ≥60 | ≥60 | ≥55 | ASTMD3754 |
| Compressive Strength 40%（N) | ≥200 | ≥150 | ≥100 | ISO2439 |
| Sag Index （65/25） | ≥3.0 | ≥2.8 | ≥2.4 | ISO2439 |
Packaging: Galvanized zinc metal barrel. A Component: 200kg/barrel; B Component: 230kg/barrel.
Shelf life: A Component /6 months; B Component /3months