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Epoxy fiberglass reinforced plastic (FRP), used for pipeline penetration, serves as the outer protective layer of a three-layer structure with polyethylene anti-corrosion coatings. The product comes in various structures such as two layers of fabric and five layers of resin, three layers of fabric and six layers of resin, four layers of fabric and seven layers of resin, etc.
Its main characteristics include high hardness and scratch resistance, providing effective protection for the pipeline's anti-corrosion coating when passing through challenging geological conditions such as hard rock formations.
In accordance with different corrosive environments and specific requirements of pipeline construction projects, it is practically impossible to carry out repairs on pipelines constructed through directional drilling. Quality issues during the construction phase may lead to rapid punctures and leaks. Therefore, for traversing complex terrains, it is recommended to use a combination of 3PE anti-corrosion coating and modified epoxy fiberglass protective layer specifically designed for directional drilling.
Our company's epoxy fiberglass for pipeline crossing meets the requirements of the "Technical Specifications for External Coatings in Directional Drilling" as specified by China Petroleum Corporation. It significantly reduces the risk of damage to the 3PE anti-corrosion coating during the pipeline crossing process, ensuring compliance with the standard requirements for long-term safe operation of the pipeline.
| Property | Performance | Standard |
| Shore Hardness | 92HD | GB/T 2411 |
| Scratch Resistance (50kg) | 458μm | SY/T 4113.1 |
| Abrasion Resistance | 3.5L/μm | SY/T 0315 |
| Bending Resistance (1°) | No crack | SY/T 6854 |
| Adhesion Strength to PE | 4.2MPa | SY/T 6854 |
(a) Testing temperature: 23°C
(b) Apply epoxy fiberglass reinforced plastic (FRP) onto the test specimens of pipes with a 3PE anti-corrosion coating. After curing, conduct tests according to Appendix A. The surface of the 3PE anti-corrosion coating should undergo roughening treatment and flame polarization.
| Address: | 1288 Shexi Road, Beishe Community, Fenhu Town, Wujiang District, Suzhou City, Jiangsu Province, China |
| Telephone: | (0512) 63242988，63242266，63242260 |
| E-mail: | oversea@dasheng.com |
| Website: | www.dasheng.com |
