Aluminum: Yellow/green chromate coating per DIN 50939, or chrome-free pretreatment.
Steel: Sand/shot blast to SA 2.5, followed by iron- or zinc-phosphating.
Galvanized Steel: Light sweep blasting, followed by zinc phosphating or chromating.
Stainless Steel: Shot blast for roughening; anchor profile ≤25 μm.
Corona Spray: High transfer efficiency; suitable for standard and large flat parts.
Tribo Spray: No high-voltage field; reduces the Faraday cage effect, ideal for deep grooves and complex parts.
1. Test bend performance before post-forming. Small coating cracks may cause corrosion.
2. Sealants, lubricants, cutting fluids and other auxiliary products in contact with the coating must be pH-neutral and coating-compatible.
3. Validate the recycled powder ratio before use.
4. For sufficient coverage, coating thickness should be 75–110 μm. Bright colors may require greater thickness.
5. For marine, coastal salt-spray exposure or long-term heavy-duty corrosion protection, use the Ailide dual-coat system. Apply E30 epoxy anti-corrosion primer and pre-cure at 200°C for 5 minutes.
6. Apply P05 powder topcoat and fully cure at 200°C for 15 minutes. Check intercoat adhesion to ensure corrosion and weathering protection.
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