Views: 0 Author: Site Editor Publish Time: 2026-08-12 Origin: Site
DINGPRECISION is a leading industrial technology company specializing in metal spray painting (liquid coating) services for home appliances, energy storage, robotics, liquid cooling, and medical industries. Our comprehensive technical capabilities ensure full compliance with both the 2026 Chinese National Standards (GB/GB/T series) and stringent EU regulations including REACH, RoHS, and Food Contact directives.
DINGPRECISION employs ceramic conversion coating as the primary pre-treatment method for metal substrates. This environmentally friendly, phosphorus-free and chromium-free process forms a nano-scale inorganic conversion film on carbon steel, galvanized steel, and aluminum surfaces, providing an excellent foundation for coating adhesion and corrosion resistance.
Our standard coating process follows the two-coat two-bake methodology:
Primer application (20–30 μm thickness) provides adhesion and corrosion protection
Topcoat application (total film thickness 40–60 μm) delivers appearance, weather resistance, and functional properties
Each layer undergoes controlled flash-off and baking cycles at precisely managed temperatures
All coating operations are conducted in spray booths that meet strict air velocity, temperature, humidity, and cleanliness standards. Our quality assurance system covers the entire production chain from raw material admission to final product inspection.
DINGPRECISION fully complies with the latest mandatory Chinese standards, including:
GB 30981-2020 – Limits of harmful substances in industrial protective coatings
GB 4806.10-2025 – Food contact materials and coatings
GB 14444-2025 series – Six new safety standards for coating operations (effective August 1, 2026)
Our processes meet the most stringent European requirements:
REACH Regulation (EC) No 1907/2006 – Restricted and authorized substances management
RoHS Directive 2011/65/EU – Hazardous substance limitations in electronic products
Food Contact Regulations – Including (EU) 2024/3190 BPA ban and migration limits
Directive 2004/42/EC – VOC emission limits for coatings
表格
Parameter | Performance Requirement |
|---|---|
Film Thickness | 40–60 μm (total) |
Adhesion (Cross-cut) | Grade 0 or 1 |
Gloss (60°) | 20–90 GU (per customer specification) |
Color Difference (ΔE) | ≤1.0 (visually imperceptible) |
Neutral Salt Spray Resistance | ≥240 h (standard) / ≥500 h (outdoor) / ≥1000 h (high corrosion) |
Humidity Resistance | ≥240 h |
Impact Resistance | ≥50 cm |
Pencil Hardness | ≥HB |
DINGPRECISION strictly controls hazardous substances in all coatings and auxiliary materials:
VOC Content: Priority selection of ≤300 g/L materials; ≤100 g/L for export parts
Heavy Metals: Lead, cadmium, mercury – intentional addition prohibited; hexavalent chromium – non-detectable
Bisphenol A (BPA): Food contact parts controlled at ≤1 μg/kg detection limit
Phthalates & PAHs: Managed according to customer-specific restricted substance lists
All suppliers must provide complete Safety Data Sheets (SDS), Declarations of Conformity (DoC), and third-party test reports.
Our facilities are designed and operated according to the highest safety standards:
Spray Booths: Explosion-proof design, controlled air velocity (0.25–0.50 m/s), temperature (15–30°C), humidity (40–70%), and illumination (≥500 lx)
Drying Ovens: Temperature uniformity control, proper exhaust paths, and fire barriers
Electrostatic Systems: Grounding resistance, gun insulation, and safe operating distance protocols
Waste Gas Treatment: Organic waste gas purification with safety monitoring and alarm systems
Hazardous Area Classification: Zone 1 for spray areas, Zone 2 for oven surroundings, with compliant electrical installations
DINGPRECISION serves five key industries with tailored coating solutions:
Home Appliances – Durable, aesthetically pleasing finishes for consumer products
Energy Storage – Corrosion-resistant coatings for battery enclosures and power systems
Robotics – Precision coatings for robotic components requiring high durability
Liquid Cooling – Specialized coatings for heat exchange and cooling system components
Medical – Compliant coatings for medical devices and equipment
表格
Timeline | Action Item | Objective |
|---|---|---|
30 days | Gap analysis for 6 new national safety standards | Complete compliance assessment and rectification plan |
60 days | Process parameter standardization | Cover all major product categories |
90 days | Digital supply chain documentation | Electronic archiving of SDS, DoC, and test reports |
6 months | EU Solvent Management Plan framework | Prepare for EU customer audits |
12 months | Silane pre-treatment pilot evaluation | Assess second-generation pre-treatment technology |
Contact DINGPRECISION for your metal spray painting needs. Our technical team is ready to support your product development, compliance verification, and quality assurance requirements.
Request a Custom IP-Rated Enclosure Quote
Phone: +1 3142997740
Email: niewenhui@dingprecision.com
Website: www.dingprecision.com
