Epoxy Coated Wire Mesh for Hydraulic & Heavy-Duty Filters
Epoxy Coated Wire Mesh (also called Epoxy Resin Mesh or Filter Support Mesh) is a critical backing/support layer used inside hydraulic filter elements, air filters and fuel filters for excavators, loaders, bulldozers and industrial hydraulic systems.
It is manufactured by electrostatic spraying of high-performance epoxy resin powder onto precision-woven Q195 low-carbon steel or Al5154 aluminum mesh, followed by high-temperature curing. The coating provides outstanding oil resistance, corrosion protection, strong adhesion and excellent flexibility for high-speed pleating.
Key Features:
- Excellent oil immersion resistance (suitable for hydraulic oil environments)
- Strong coating adhesion (Cross-hatch Grade 0)
- High hardness (Pencil hardness 2H)
- Soft and easy to pleat on high-speed machines
- Cost-effective alternative to stainless steel support mesh
- RoHS compliant
Common Specifications (Most Popular for Hydraulic Filters):
| Mesh Count | Wire Diameter | Base Material | Coating | Application |
|---|---|---|---|---|
| 18 × 14 | 0.18 mm | Q195 | Black Oil-Resistant | Hydraulic filter (most common) |
| 18 × 14 | 0.16 mm | Q195 | Black Oil-Resistant | Hydraulic / high open area |
| 22 × 20 | 0.18 mm | Q195 | Black Oil-Resistant | Hydraulic filter |
| 12 × 10 | 0.25 mm | Q195 | Black Oil-Resistant | Heavy support |
| 18 × 16 | 0.18–0.23 mm | Q195 / Al5154 | Black / Gray | Hydraulic & Air filter |
| 18 × 14 | 0.21 mm | Al5154 | Black / Weather | Air filter |
Other Parameters:
- Coating thickness options: 25±5 μm or 35±5 μm.
- Reference test result: The sample documented in the linked UCT report (page 6) had an average measured coating thickness of 46 μm; this sample result is not a specification for all products.
- Width: 20–1500 mm (custom available)
- Color: Black (standard), Gray, White, Custom
- Operating temperature: -40°C to +150°C
- Supply form: Rolls or cut-to-length sheets
Third-Party Test Results (Available Reports):
- RoHS (Pb, Cd, Hg, Cr(VI)): PASS
- Coating Adhesion (GB/T 9286): Grade 0
- Pencil Hardness (GB/T 6739): 2H
- Coating Flexibility (180° bend): PASS
- Salt Spray & Oil Immersion: PASS
Full test reports can be provided upon request.
Applications:
- Hydraulic filter elements for excavators, loaders, bulldozers (CAT, Komatsu, Hitachi, Volvo, etc.)
- OEM and aftermarket heavy-duty filters
- Air filter and fuel filter support layers
- Industrial hydraulic systems requiring oil-resistant support mesh
Why Choose Huirui?
- Over 15 years specialized experience
- Long-term continuous supply to Japanese brand (Yamashin) filter production in Philippines & Vietnam
- Strict quality control and consistent performance
- Fast sampling and flexible MOQ
- Professional English communication and export service
Contact us for free samples, full test reports and competitive quotation.
