| Features and main uses： | |||
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FW-H-2028 is an isophthalic unsaturated polyester resin with medium viscosity, good wettability to glass fiber, good toughness and high elongation. The resin has passed 《The hygienic standard for polyester and glass fiber reinforced plastic products for food containers and packaging materials》 (GB13115-1991), and is suitable for use as food grade inner lining of fiber wrapped (sand sandwiched) FRP pipes. |
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| Technical index of liquid resin（25℃）: | |||
| Project | Company | Index | Test Method |
| Appearance | ... | Light yellow transparent liquid | ... |
| Viscosity | Pa?s | 0.27~0.43 | GB/T7193.4.1 |
| Gel time | min | 9.1~16.9 | JIS-K-6901.5.10 |
| Note: gel time test:Resin 100g； Accelerator RCA 2.0%；Curing agent Butanox M-50 2.0% | |||
| Physical properties of casting body: | |||
| Project | Company | Measured value | Test Method |
| Tensile strength | MPa | ≥60 | GB/T2567-2008 |
| Tensile modulus of elasticity | MPa | ≥2500 | GB/T2567-2008 |
| Breaking extensibility | ... | ≥3.5% | GB/T2567-2008 |
| Hot deformation temperature | ℃ | ≥70 | GB/T1634-2004 |
| Barcol hardness | ... | ≥35 | GB/T3854-2005 |
| Note: 1. The preparation method is in accordance with GB / T8237-2005, curing system: Accelerator RCA 1.0%, Curing agent Butanox M-50 1.0%. | |||
| 2. Casting body post-treatment: room temperature×24 hours + 60 ℃×3 hours + 100 ℃×1 hours. | |||
| Hygienic index of casting body: | |||
| Project | Index | ||
| Potassium permanganate consumption，mg/L | Distilled water，60℃，2h | ≤10 | |
| Evaporation residue，mg/L | 4%Acetic acid，60℃，2h | ≤30 | |
| 65%Ethanol，room temperature，2h | ≤30 | ||
| N-hexane，room temperature，2h | ≤30 | ||
| Heavy metal，mg/L | ≤1 | ||
| Residual styrene，% | ≤0.2 | ||
| Instructions: | |||
| 1.FW-H-2028 unsaturated polyester resin can be cured at room temperature after adding cobalt vapor solution as accelerator and MEKPO as curing agent. The cured products should be placed at room temperature for more than 14 days according to the actual environmental conditions. | |||
| 2.The surface in contact with food should be purified by steam for 1 hour or filled with hot water (60 ~ 80 ℃) without perfume detergent. After 2 hours, it should be extracted and washed with water for several times. | |||
| Matters needing attention: | |||
| 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. | |||
| 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. | |||
