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CP301 is a UV-curable prepreg sheet material that uses unsaturated polyester resin/vinyl ester resin as the matrix and glass fiber as the reinforcement. It is a glass fiber-reinforced composite material. The material has a uniform thickness and a dense structure, with plastic film attached on both sides. It has a sheet-like appearance and is cured using UV-A ultraviolet light.
CP301 is specifically developed as an outer protective layer for horizontal directional drilling on long-distance pipelines, and it is also known as UV-curable protective tape (also referred to as photosensitive fiberglass reinforced plastic or UV-curable sheet material.
| Property | Performance | Standard |
| Thickness | 1.85mm | GB/T 6672 |
| Tensile Strength | 99MPa N/mm2 | GB/T 1447 |
| Shore Hardness | 99 | GB/T 2411 |
| Impact Strength | 86 | SY/T 0315 |
| Bending Resistance (1°) | No crack | SY/T 0315 |
| Abrasion Resistance | 5L/um | SY/T 0315 |
| Scratch resistance (50kg) | 223um | SY/T 4113 |
| Adhesion Strength to PE | 2.3MPa | GB/T 7124 |
| Cohesion Strength to PE | 0.68MPa | SY/T 4113 |
| Property | Performance | Standard |
| Solid Content | 82% | GB/T 1725 |
| Time | 99.2min. | SY/T 0457 |
| Drying Time (surface) | 1.3h | GB/T 1728 |
| Drying Time (whole) | 7.1h | GB/T 1728 |
| Bending Resistance (1°) | No crack, no leak | SY/T 6854 |
| Impact Resistance | 9.1J | SY/T 0315 |
| Adhesion Strength (to 3PE) | 12.3MPa | SY/T 6854 |
(a) Testing Temperature: 23°C
(b) Coating Thickness: 500μm ± 50μm
(c) Apply the epoxy coating material onto the specimen with an anti-corrosion layer. The anti-corrosion layer should be roughened, and the 3PE anti-corrosion layer should be polarized.
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