| Customization: | Available |
|---|---|
| CAS No.: | 26098-37-3 |
| Formula: | C19h24o11 |
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UT-25 resin is a pre-accelerated, long-gel time unsaturated polyester resin with low viscosity, good glass fiber wettability, fast curing and air-drying properties. It is suitable for RTM and vacuum infusion forming process, and is used to manufacture glass fiber reinforced plastic fishing boats, auto parts, fan hoods and waterproof boards and other products.
| Projects | Measured value | Test method |
| Appearance | Purple-red transparent liquid | GB/T 8237.4.1.1 |
| Viscosity (Pa.s, 25ºC) | 0.14-0.18 | GB/T 7193.1 |
| Gel time (min, 25ºC) | 50.0-80.0 | GB/T 7193.6 |
| Acid value (mgKOH/g) | 28-34 | GB/T 2895 |
| Solids content (%) | 54-60 | GB/T 7193.3 |
| Projects | Measured value | Test method |
| Barcol Hardness | 49 | GB3854-05 |
| Thermal Deformation Temperature (ºC) | 68 | GB 1634-04 |
| Flexural modulus (Mpa) |
4200 | GB/T2570-95 |
| Tensile strength (Mpa) | 55 | GB/T2568-95 |
| Elongation (%) | 1.8 | GB/T2568-95 |
| Impulse strength (KJ/m2) | 10.2 | GB2571-95 |
Note: 1.The sample preparation method shall be implemented according to GB 8237-87.
2.Curing system: curing agent 55% MEKPO: 1%
3.Post-curing treatment: 60ºC×2 hours + 100ºC×2 hours
4.Glass fiber content: 70±3%
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