Technical requirements of the EN 10290 standard for polyurethane coatings
The European standard EN 10290 establishes strict specifications for external liquid-applied protective coatings based on polyurethane (PUR) and its modified versions (PUR-MOD). This technology is designed to provide long-term anti-corrosion protection for steel pipes and fittings operating in aggressive environments.
Professional solutions from EV Group China comply with EN 10290 requirements for all types of steel products: from seamless to electric-welded (longitudinal and spiral seam) pipes used in main pipelines for the transportation of hydrocarbons, gas, and technical fluids.
Application features:
- Application method: preferably airless spraying or manual brush application. Alternative methods (trowel, injection) are permitted upon agreement with the customer, depending on the geometry of the product.
- Technological sequence: for components undergoing cold bending, the polyurethane layer is applied after the forming process is complete.
Classification of coatings by thickness and temperature ranges:
| Coating Type | Operating temperature range | Thickness class |
|---|---|---|
| Type 1 | from -20°C to +40°C | A (1000 µm) / B (1500 µm) |
| Type 2 | from -20°C to +60°C | B (1500 µm) |
| Type 3 | from -20°C to +80°C | B (1500 µm) |
EV Group China specialists emphasize that when pipelines are operated in extreme temperature conditions, individual coating specifications can be developed based on the results of additional laboratory tests. This type of protection is compatible with cathodic polarization systems, which significantly increases the service life of underground and underwater infrastructure assets.