Custom Welded PVC Coated Wire Mesh Fence

Material Composition

The core wire is typically SAE 1008/1010 cold‑drawn steel with a tensile strength of 350–450 MPa and an elongation at break of 10–15 %. The PVC coating is formulated with a plasticizer content of 25–35 phr, a stabilizer package for heat and UV resistance, and pigments that achieve color stability under ASTM G154 exposure. Coating thickness is controlled to 0.30 mm ± 0.05 mm, measured via micrometer on cured samples.

Welding Process

Resistance spot welding applies a controlled current (typically 8–12 kA) for 0.1–0.2 seconds per joint, producing a fused nugget with a diameter of 1.5–2.5 times the wire thickness. Post‑weld, the mesh passes through a pre‑heater (≈150 °C) to relieve stresses before entering the PVC extrusion die, where the coating is applied at line speeds of 5–15 m/min. The resulting weld shear strength exceeds 80 % of the parent wire tensile strength, verified by ASTM E8 tensile tests on welded coupons.

Dimensional Specifications

Mechanical Properties

Tensile strength of the coated wire is measured after coating removal to isolate the steel core; values typically fall between 380 MPa and 420 MPa. Elongation at break remains above 8 % due to the ductile nature of the low‑carbon steel. The PVC layer contributes a peel adhesion of 1.8–2.4 N/mm (ASTM D903), ensuring the coating remains intact under flexural stress. Impact resistance, evaluated via ASTM D256 (Izod), shows no cracking at –20 °C for a 2 mm notch depth.

Corrosion Resistance

Salt‑spray testing per ASTM B117 demonstrates less than 5 % red rust after 500 hours for the standard coating formulation. UV stability is assessed using ASTM G154 (UVA‑340, 0.89 W/m²) for 1000 hours, resulting in ΔE< 5 (CIELAB) and no visible chalking. The PVC barrier also limits chloride ion penetration, making the fence suitable for coastal environments where chloride concentrations exceed 5 g/L.

Applications

In agricultural settings, the fence provides livestock containment while allowing airflow and visibility, reducing heat stress compared to solid barriers. Industrial facilities use it as a perimeter deterrent where climbing resistance is required; the welded joints prevent easy cutting, and the PVC coating eliminates sharp edges that could injure personnel. For municipal projects, the product serves as a noise‑abatement screen when combined with absorptive backing, thanks to its open geometry that dissipates sound waves while maintaining structural rigidity.

Customization Options

Wire gauge can be adjusted from 1.2 mm (light‑duty) to 4.0 mm (high‑security) without changing the welding pitch. Mesh aperture is selectable in 2 mm increments to balance visibility with intrusion resistance. PVC color is available in standard RAL shades (e.g., 6005 green, 9005 black) or custom‑matched upon provision of a pigment sample. Roll dimensions are tailored to site logistics; typical widths range from 0.5 m for easy handling to 3.0 m for rapid installation, with lengths limited only by coil weight (≈25 kg max). Additional features such as integrated tension wires, top rails, or anti‑climb rollers can be incorporated during the extrusion stage.

Quality Assurance

Each production lot undergoes dimensional verification using laser micrometers (±0.01 mm tolerance) on wire diameter and opening size. Weld integrity is checked by tensile pull‑out tests on a random sample of 10 joints per lot, with acceptance criteria of ≥75 % of base wire strength. Coating thickness is scanned via infrared gauging at 1‑m intervals along the roll, and adhesion is validated by peel tests on three specimens per batch. Final inspection includes a visual check for surface defects such as pits, bubbles, or discoloration under 500 lux illumination.

Frequently Asked Questions

• Can dimensions be customized? Yes, wire gauge, mesh opening, roll width, and length are all adjustable per project specifications.
• What information is required before quotation? Provide desired wire diameter, opening size, coating color, roll dimensions, and any additional features (e.g., tension rails).
• What materials are available? Core wire is low‑carbon steel (SAE 1008/1010); PVC coating can be formulated with various stabilizers and pigments.
• How is quality inspected? Dimensional checks, weld tensile tests, coating thickness gauging, and adhesion testing are performed on each lot.
• What packaging methods are available? Rolls are wrapped in polyethylene film, placed on pallets, and secured with strapping; custom crating is offered for overseas shipments.
• How are export shipments protected? Pallets are fumigated if required, and moisture‑absorbent desiccants are included inside the wrap.
• What is the typical production lead time? Lead time ranges from 10 to 25 working days depending on order complexity and current capacity.
• How are samples arranged? Sample rolls (up to 5 m length) can be dispatched upon receipt of a technical request; shipping charges apply.

Get a Quote

To receive a detailed quotation, please share your technical requirements via the contact form. Our engineering team will review the specifications, confirm feasible tolerances, and return a formal proposal with lead time and pricing within two business days.