Epoxy Coated Wire Mesh for Hydraulic & Air Filter Support
High-durability epoxy coated wire mesh designed as a rugged structural support layer for hydraulic and air filter elements. Woven from plain steel (Q195), aluminum (Al5154), or stainless steel wires, it features an electrostatic sprayed and high-temperature cured epoxy coating. Delivers outstanding oil immersion corrosion resistance and high pleating stability—perfectly processed and slit using our Filter Media Slitting & Rewinding Machines.
Our Epoxy Coated Wire Mesh (also widely known as epoxy mesh, filter supporting mesh, or epoxy coated square wire mesh) is an engineered structural material designed to support pleated filter paper or synthetic media in high-performance hydraulic and air filtration systems.
It is manufactured by weaving premium metal wires (such as low-carbon steel Q195, aluminum alloy Al5154, or stainless steel) into a precise grid, applying a special eco-friendly epoxy resin powder via electrostatic spraying, and curing it at high temperatures to form a dense, uniform protective layer. This epoxy barrier reinforces the base mesh, locks the wire intersections, and provides exceptional resistance against high-pressure flow surges, chemical exposure, and environmental humidity, preventing “pleat crowding” or structural collapse under extreme operating conditions.
Technical Specifications
The factual mechanical parameters, substrate materials, and testing standards of our Epoxy Coated Wire Mesh are detailed below:
0.58 m, 0.754 m, 0.876 m, 0.965 m, 1.0 m, 1.25 m etc.
Oil Immersion Resistance
Unchanged coating surface under high-temperature/high-pressure oil testing
Salt Spray Resistance
≥ 96 hours continuous testing (according to ASTM B117-09)
Key Features & Performance Advantages
1. Excellent Pleating Stability & Flexibility
The dense epoxy coating binds the warp and weft wires together, locking the square mesh openings in place. When folded with filter paper on pleating machines, it maintains highly uniform pleat spacing without deformation. The coated mesh can be bent over a bar with a 1mm radius of curvature without any surface cracking or coating peeling.
2. Superior Oil & Chemical Corrosion Resistance
Specially designed for hydraulic systems, this mesh can remain fully submerged in various brands of high-temperature, high-pressure hydraulic oil and chemical media for extended periods without any changes to the coating surface. This ensures clean, long-term operation in critical oleodynamic applications.
3. Outstanding Weather & Salt Spray Protection
Compliant with the ASTM B117-09 salt spray test standard, our epoxy mesh can withstand over 96 hours of continuous exposure in harsh salty environments. This makes it an excellent choice for outdoor air filters and heavy marine industrial environments.
4. Clean Edges & No Wire Shedding
After our rolls are cut or slit into narrow strips, the adhesion of the cured coating at the wire intersection points (reaching up to 0.7kg) prevents the loose edge wires from falling off. This eliminates metal debris in your clean hydraulic systems.
Applications & Industrial Uses
Our industrial epoxy filter supporting mesh is widely deployed in high-pressure and high-dust environments:
Hydraulic System Filters: Core support and protective outer backing layers for high-pressure oleodynamic system filters.
Automotive & Industrial Air Filters: Backing support and pleat spacing for pleated HVAC air conditioning and engine air filters.
Heavy Construction Machinery: Support and pleat protection layers for excavator, mining truck, and forklift hydraulic return filters.
Why Partner with Fupei?
Burr-Free Precision Slitting: Since epoxy mesh requires high structural rigidity, we test and slit our bulk rolls using our own Filter Media Slitting & Rewinding Machines. This ensures perfectly straight, clean-cut, burr-free edges that feed smoothly into automatic filter pleaters.
Rigorous In-House Simulation Tests: We conduct paint film elasticity, salt spray, cross-cut adhesion, and high-temperature oil immersion tests to ensure every batch exceeds rigorous industrial quality standards.
One-Stop Technical Matching: We can custom-formulate the mesh flexibility, wire diameter, and powder color (dark grey, black, white) to perfectly match your filter element configurations and machinery parameters.
Frequently Asked Questions
A: For standard air filters, we recommend using aluminum alloy (Al5154) wire mesh as the substrate due to its lightweight properties and excellent atmospheric corrosion resistance. For hydraulic filter systems, we recommend using low-carbon steel (Q195) wire mesh as the substrate because it offers superior mechanical support and structural resistance under high pressure and rapid oil flow surges.
A: No. Our epoxy coated wire mesh undergoes an electrostatic spraying and high-temperature curing process that chemically bonds the resin to the metal wires. It features exceptional flexibility and passing a 1mm radius bending test without any surface cracks or peeling, making it perfect for automatic pleating.
A: We wrap our epoxy mesh rolls tightly with moisture-proof kraft paper on the inside and protective plastic woven cloth on the outside, loaded onto sturdy wooden pallets or cases to prevent deformation during ocean transit. Standard widths are ready to ship within 5 days.
