| Features and main uses: | |||
| PS-520 unsaturated polyester resin is SMC / BMC resin for molding. It has smooth surface, high gloss, excellent water resistance, heat resistance, high mechanical strength and good electrical properties. It is widely used in electrical parts, industrial parts, bathroom parts, automobile parts and other fields. | |||
| Technical index of liquid resin: | |||
| Project | Company | Index | Test Method |
| Appearance | ... | Transparent micromixed liquid | B80101 |
| Solid content | ... | （59.0~61.0）% | B22301 |
| Viscosity | Pa?s | 0.60~0.80 | B54953 |
| Acid value | mgKOH/g | 13.0~15.0 | C60302 |
| Chroma | ... | Less than 2 | B40101 |
| High temperature gel time（82.2℃） | min | 6.0~8.0 | C85401 |
| High temperature curing time （82.2℃） | min | 7.0~10.0 | C85431 |
| Maximum exothermic peak at high temperature （82.2℃） | ℃ | 230.0~250.0 | C85461 |
| Note: gel time test: 50%BPO powder 2% | |||
| Physical properties of casting body: | |||
| Project | Company | Measured value | Test Method |
| Tensile strength | MPa | 46.6 | GB/T2567-2008 |
| Bending strength | MPa | 82 | GB/T2567-2008 |
| Impact strength | KJ/m2 | 8 | GB/T2567-2008 |
| Hot deformation temperature | ℃ | 125 | GB/T1634-2004 |
| Barcol hardness | ... | 49 | GB/T3854-2005 |
| Note: 1. The preparation method is in accordance with GB / T8237-2005, curing system: Accelerator RCA 1.5%, curing agent Butanox M-50 1.0%. | |||
| 2. Casting body post-treatment: room temperature×24 hours + 60 ℃×3 hours + 120 ℃×1 hours. | |||
| Matters needing attention: | |||
| 1. Due to the high temperature in summer, please add proper amount of polymerization inhibitor to ensure the storage stability of SMC / BMC. | |||
| 2. The product should be stored in a cool place below 25 ℃ to avoid fire and keep away from heat and radiation sources. The shelf life of products stored below 25 ℃ is 3 months. | |||
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In view of the diversity of application conditions, it is necessary for users to confirm the product performance. If you have any questions about the contents of this information or want to know more information, please contact our company. We reserve the right to modify the data. |
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