PE Powder Coating for Highway Guardrails
We are a manufacturer based in China. We specialize in providing high-quality PE Powder Coating for Highway Guardrails for industrial clients across various sectors. Whether you need chemicals consultation or technical support, our team is here to help.
Category：Application industries, powder Coating Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
1. Product Overview
In recent years, with the rapid development of highway construction, the demand for safety guardrails has continued to grow. In response to this market demand, our company has successfully developed a PE powder coating specifically for highway guardrails by utilizing industry-leading technology and advanced production equipment.
This coating combines excellent protective performance with outstanding decorative properties. The cured coating features a smooth and even surface, rich and soft color, excellent weather resistance, outstanding environmental stress cracking resistance (ESCR), and superior low-temperature performance.
It is widely used for highway guardrails, railway fencing, municipal engineering projects, and landscaping applications.
2. Main Technical Specifications
Application Conditions
| Process | Temperature | Time |
|---|---|---|
| Preheating | 350℃ | 8–10 min |
| Dip Coating | 300 ± 10℃ | 5–10 s |
| Plasticization | 240 ± 10℃ | 3–5 min |
| Cooling | Water or air cooling | — |
Powder Properties
| Test Item | Test Method | Technical Specification |
|---|---|---|
| Powder Particle Size | GB/T 6554 | Residue on 60-mesh sieve < 5% |
| Flowability | — | Floating rate > 20% |
| Non-volatile Content | GB/T 6554 | > 99.5% |
Coating Performance
| Test Item | Test Method | Technical Specification |
|---|---|---|
| Adhesion | Peel Test | Grade 1 |
| Impact Strength | GB/T 0040 | > 21.6 J |
| Impact Brittleness Temperature | GB/T 5470 | < -65℃ |
| Bending Performance | GB/T 6742 | 1 mm |
| Tensile Strength | GB/T 1040 | > 12 MPa |
| Elongation at Break | GB/T 1040 | ≥ 500% |
| Flame Retardancy | — | Qualified |
| Weather Resistance (1200 h) | GB/T 9344 | No visible change in coating appearance |
| Chemical Immersion Resistance (30% HCl, 40% NaOH, 5% NaCl, 720 h) | GB/T 11547 | No visible change in coating appearance |
Surface Pretreatment
Recommended pretreatment methods:
Acid pickling and phosphating
Shot blasting or sand blasting (recommended for optimum performance)
Application Method
Fluidized bed dip coating (blowing and suction process)
3. Application Range
Suitable for coating applications in:
Highway guardrails
Railway fencing
Municipal engineering projects
Landscaping and urban greening projects
4. Safety and Hygiene
This product is non-toxic and environmentally friendly.
Not intended for consumption.
Ensure adequate ventilation during application and processing.
5. Packaging, Storage and Transportation
Packaging: 25 kg kraft paper bags.
Shelf life: 12 months.
Protect from direct sunlight and rain. When the ambient temperature exceeds 35℃, appropriate insulation measures should be taken during storage and transportation.
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