When buyers compare rockfall netting, mesh opening and wire diameter are only part of the decision. The coating system also matters because slope exposure, humidity, corrosion risk, budget, and project service-life reference can all affect which version is suitable.
This guide compares three common coating choices for double twisted hexagonal rockfall netting: hot dipped galvanized, Galfan, and PVC coated. The goal is to help buyers prepare a clearer specification before asking for price, samples, inspection records, or lead time, because coating selection depends on the project environment and order requirements.
Quick Comparison Table
| Coating option | Main buying reason | Common buyer focus | Details to confirm before quotation |
|---|---|---|---|
| Hot dipped galvanized | Cost-efficient metallic protection | Zinc coating reference, standard roll supply, budget control | Mesh opening, wire diameter, zinc coating target, roll size, quantity, project environment |
| Galfan | Higher corrosion-resistance target than standard galvanized wire | Zn-Al alloy coating, exposed slopes, transport corridors | Galfan alloy requirement, mesh opening, wire diameter, roll size, quantity, exposure environment |
| PVC coated galvanized | Additional PVC layer over galvanized wire | Color, surface protection, humid or exposed conditions | Inner wire diameter, coated outside diameter, PVC color, roll size, quantity |
| PVC coated Galfan | Metallic alloy base wire plus PVC layer | Longer-exposure discussions where both base wire and outer coating matter | Base wire, PVC color, target service-life reference, mesh opening, coated wire diameter, roll size |
For most orders, the coating should be confirmed together with mesh opening, mesh wire, selvedge wire, roll size, lacing wire requirement, packing method, and inspection needs.
Hot Dipped Galvanized Rockfall Netting
Hot dipped galvanized rockfall netting is usually selected when the buyer needs a clear zinc coating reference, standard roll supply, and a cost-efficient metallic coating. It is often the starting option for general slope protection quotations when the project specification does not require Galfan alloy or PVC coating.
Yuelian's current public specification reference includes:
- Mesh opening: 60x80 mm, 80x100 mm, 100x120 mm
- Mesh wire diameter: 2.7 mm, 3.0 mm
- Selvedge wire diameter: 3.4 mm, 3.9 mm
- Common roll sizes: 2x25 m, 2x50 m, 3x25 m, 3x50 m, 4x25 m, 4x50 m
- Zinc coating reference: 215-275 g/m2 according to order requirement
- Tensile strength option: 50 kN/m when required by project specification
Choose this option when budget efficiency, zinc coating data, and standard roll supply are the main concerns. The zinc coating number alone should not be treated as a complete performance guarantee. Exposure environment, installation condition, and maintenance still affect field performance.
Galfan Rockfall Netting
Galfan rockfall netting uses a zinc-aluminum alloy coating. It is usually discussed when buyers need higher corrosion resistance than ordinary galvanized wire while keeping the product in metallic roll form.
Yuelian's current public specification reference includes Galfan alloy options such as Zn-Al 90/10 or 95/5 according to order requirement. Buyers should state the required alloy type if the project specification already defines it.
Galfan is a useful option for exposed slopes, transport corridors, and projects where coating performance matters more than the lowest unit price. It should still be compared by the full order specification, including mesh opening, wire diameter, roll size, quantity, and project exposure.
PVC Coated Rockfall Netting
PVC coated rockfall netting adds a PVC layer over galvanized or Galfan base wire. Buyers usually consider it for harsh exposure, humid environments, coastal or color-sensitive projects, or longer service-life discussions.
For PVC coated orders, the wire size should be stated more carefully than for simple metallic coating. Buyers should confirm both:
- Inner wire diameter before PVC coating
- Coated outside diameter after PVC coating
For example, available inspection photos support a PVC coated Galfan batch with 2.7 mm inner wire, 3.7 mm coated wire, and 80 mm mesh opening.
PVC coating should not be described as automatically suitable for every project. The final discussion should consider base wire, PVC thickness, coating condition, slope exposure, installation condition, maintenance, and the buyer's target service-life reference.
Which Coating Should Buyers Choose?
Use the project environment and order requirement as the starting point.
| Buying situation | Practical coating direction |
|---|---|
| Budget-sensitive order with standard metallic protection | Start with hot dipped galvanized rockfall netting and confirm zinc coating target. |
| Project needs better corrosion resistance than standard galvanized wire | Compare Galfan coating and confirm Zn-Al 90/10 or 95/5 requirement. |
| Project needs color, added surface protection, or harsh-exposure discussion | Compare PVC coated galvanized and PVC coated Galfan options. |
| Buyer needs documents and inspection support before shipment | Ask for wire diameter, mesh opening, zinc coating, tensile, finished roll, and packing records according to the order. |
| Specification is not fully fixed yet | Send project environment, expected exposure, mesh opening, wire diameter, roll size, and quantity for coating selection support. |
The safest approach is to avoid choosing only by price or only by the product photo. A more reliable comparison starts with the actual slope exposure, project specification, corrosion risk, roll size, packing method, and inspection expectations.
Quality Checks for Coated Rockfall Netting
Coating comparison should be supported by measurable checks where possible. Typical rockfall netting quality checks may include:
- Mesh wire diameter measurement
- Selvedge wire diameter measurement
- Mesh opening measurement
- Zinc coating weight testing for galvanized wire
- Inner wire and coated wire diameter checks for PVC coated netting
- Tensile or elongation testing records when required by the order
- Finished roll appearance and packing inspection
For overseas procurement, these records help buyers confirm that the ordered coating and specification are being discussed in measurable terms, not only by catalogue names.
Information to Send for Coating Selection
Before asking the factory to recommend a coating, prepare the following details:
- Project environment or exposure condition
- Mesh opening
- Mesh wire diameter
- Selvedge wire diameter, if specified
- Roll width and roll length
- Required surface treatment
- Zinc coating target, Galfan alloy, or PVC color requirement
- Inner wire and coated wire diameter for PVC coated netting
- Tensile strength requirement, if stated by the project
- Quantity
- Packing, inspection, certificate, sample, or shipment document requirements
- Destination port or delivery country
Qualified overseas buyers can request free samples with courier delivery before bulk order confirmation. For price, lead time, sample availability, inspection records, or coating recommendation, send the specification through the request coating selection support page.
Buyer Summary
Hot dipped galvanized rockfall netting is the usual starting point when buyers need cost-efficient zinc-coated roll supply. Galfan rockfall netting is better positioned for higher corrosion-resistance requirements than standard galvanized wire. PVC coated galvanized or PVC coated Galfan rockfall netting is used when buyers need an added protective layer, color requirement, or harsh-exposure discussion.
The right coating depends on the full order context: environment, corrosion risk, target service-life reference, mesh opening, wire diameter, roll size, inspection records, and budget. A complete specification makes the comparison more useful and reduces misunderstanding before bulk production.
Quick Inquiry
Need help checking mesh opening?
Qualified overseas buyers can request a free sample within 1 square meter before bulk order confirmation.