T/SCSKJQYLHH 27-2024 Water-based anti-stain easy-clean aluminum veneer coating with fluorocarbon paint

Scope

Main technical content: 6.1 Appearance quality 6.1.1 The appearance should be clean, with clear lines, no obvious scratches, indentations, imprints, or uneven marks. The edges should be smooth without burrs, and there should be no cracks at bends. The coating should be free from surface defects such as missed coating, ripples, bubbles, flow marks, cracks, air bubbles, or particles, and the color should be consistent without obvious color differences. 6.1.2 Observe according to the visual inspection method specified in GB/T 9761. 6.2 Dimensional deviations The allowable dimensional deviations should comply with the requirements of GB/T 3880.2. Special provisions may be agreed upon by the supplier and the buyer. 6.3 Paint film performance The paint film performance should comply with the requirements specified in Table 1. **Table 1: Paint Film Performance Requirements** **Item** **Indicator** **Test Method** Spray-applied products Roll-applied products Paint film color difference E≤3.0 GB/T 9761 Paint film glossiness/° 20-90 GB/T 9754 Paint film thickness/μm 40-45 30-35 GB/T 4957 Paint film pencil hardness ≥HB ≥HB GB/T 6739 Paint film water contact angle/° 100-110 GB/T 30447 Adhesion (cross-hatch test) ≤1 grade GB/T 9286 Impact resistance/Kg·cm ≥50 GB/T 1732 Acid resistance (50g/L H2SO4) 168h No abnormalities GB/T 9274 Artificial accelerated aging resistance (3000h) Discoloration not greater than 1 grade GB/T 1766 Soil resistance ≤5% GB/T 9780 Easy cleanability (resistance to oil-based pen marking, anti-adhesion of sticky labels, resistance to silicone oil stains) Removal without residue GB/T 9780

Development Information

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