| Features and main uses： | |||||
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PC-670（W/M/S） is a kind of o-benzene type pre promoted unsaturated polyester resin. It has air drying property and is suitable for RTM injection molding process to manufacture general FRP, waterproof board and other products. W: Winter type M: Spring and autumn type S: Summer type |
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| Technical index of liquid resin（25℃）: | |||||
| Project | Company | PC-670W | PC-670M | PC-670S | Test Method |
| Appearance | ... | Purplish red liquid | ... | ||
| Viscosity | Pa•s | 0.3~0.4 | 0.35~0.45 | 0.35~0.45 | JIS-K-6901.4.4.1 |
| Room temperature gel time | min | 6.0~10.0 | 8.0~12.0 | 12.0~16.0 | C83201 |
| Note:Room temperature gel time: 25 days, add 2%MEKPO (active oxygen 9%) life span, the aim is to prevent short injection period. | |||||
| Physical properties of casting body: | |||||
| Project | Company | Measured value | Test Method | ||
| Tensile strength | MPa | 65.2 | GB/T2568-95 | ||
| Tensile modulus of elasticity | MPa | 3350 | GB/T2568-95 | ||
| Breaking extensibility | ... | 3.42% | GB/T2568-95 | ||
| Bending strength | MPa | 110 | GB/T2570-95 | ||
| Bending modulus of elasticity | MPa | 3250 | GB/T2570-95 | ||
| Impact strength | KJ/m² | 14 | GB/T2571-95 | ||
| Hot deformation temperature | ℃ | 50 | GB/T1634-89 | ||
| Barcol hardness | ... | 39 | GB/T3854-83 | ||
| Note: 1. The preparation method is in accordance with GB / T8237-87, curing system:Curing agent Butanox M-50 1.0%. | |||||
| 2. Casting body post-treatment:60 ℃×3 hours + 80 ℃×1 hours. | |||||
| Working curve of pc-670 resin cold curing: | |||||
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The relationship between the dosage of curing agent and gelation time at different temperatures can be used for reference when the user determines the formulation. (The curing agent is MEKPO with active oxygen content of 9%) |
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| PC-670W | 1 | 1.5 | 2 | ||
| 10℃ | ... | ... | 19 | ||
| 15℃ | ... | 14 | ... | ||
| 20℃ | 13 | ... | 9.5 | ||
| 25℃ | ... | ... | 7.5 | ||
| PC-670M | 1 | 1.5 | 1.0 | ||
| 15℃ | 25 | ... | 19 | ||
| 20℃ | 18 | ... | 13.5 | ||
| 25℃ | 14.5 | ... | 9.5 | ||
| PC-670S | 0.5 | 1.0 | 1.5 | 1.0 | |
| 25℃ | ... | 20.5 | 15 | 13.5 | |
| 30℃ | ... | 14 | 11 | 9.3 | |
| 35℃ | 15.5 | 9.3 | ... | ... | |
| 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. | |||||
