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Help CenterThermoplastic PE Polyethylene Powder Coating for Battery Containers,Gray RAL7016 Low-Temperature Resistant
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Gray RAL7016 Low-Temperature Resistant Thermoplastic PE Polyethylene Powder Coating for Battery Containers
Product Introduction
Our Gray RAL7016 Low-Temperature Resistant Thermoplastic PE Polyethylene Powder Coating is engineered to meet the demanding requirements of battery containers, especially those used in cold environments. This coating leverages blending modification of different polyethylene grades (including PE-B for fluidity and PE-D for toughness) and incorporates low-temperature stabilizers, ensuring it maintains flexibility and adhesion even at sub-zero temperatures. It is an ideal choice for battery boxes in new energy vehicles, industrial storage systems, and outdoor equipment, where low-temperature resistance and anti-corrosion are non-negotiable.
Core Performance Specifications
Performance Indicator |
Value |
Test Standard/Reference |
Low-Temperature Embrittlement Resistance |
-35℃, 60h without cracking |
Q/HJ 008 |
High-Low Temperature Cycle Resistance (-30→20→60→20℃) |
8 cycles, no cracking/peeling |
Internal Test |
Melt Flow Rate |
5-50 g/10min (2.16kg, 190℃, adjustable) |
Internal Test |
Shore Hardness (D) |
53 |
GB/T 2411 |
Bending Performance (200mm Film Thickness) |
≤2mm bending radius |
GB/T 6742 |
Color |
Gray RAL7016 (flat, smooth appearance) |
Q/HJ 008, GB/T 9761 |
Non-Volatile Content |
≥99.5% |
Internal Test |
Key Features for Cold Environments
• Exceptional Low-Temperature Toughness: Resists embrittlement at -35°C for 60 hours, avoiding coating cracking that often occurs in traditional coatings when exposed to cold. This is critical for battery boxes used in high-altitude or cold-region applications.
• Stable High-Low Temperature Performance: Endures 8 cycles of temperature fluctuations (-30°C to 60°C) without peeling or cracking, adapting to the varying operating temperatures of battery systems (which generate heat during charging/discharging).
• Reliable Adhesion in Cold Conditions: Maintains Grade 0-1 adhesion (per JT/T 600.1-5.5.2.3.2) even after low-temperature exposure, preventing coating detachment from the carbon steel substrate.
Application Guidelines
• Storage: Keep the powder in a dry, sun-free area below 35°C, following a first-in-first-out inventory system. Each composite paper bag contains 20kg of powder.
• Pre-Treatment Recommendation: After degreasing and rust removal, phosphatize the substrate to enhance adhesion. Avoid chromate treatment (due to hexavalent chromium toxicity and environmental risks).
• Temperature Control: Do not overheat the workpiece (causes coating aging/discoloration) or underheat (results in uneven coating and poor adhesion). Adjust preheating temperature based on metal thickness.
• Workpiece Design: Grind sharp edges and ensure no gaps in welding areas; uniform metal thickness/wire diameter on the workpiece ensures consistent coating quality.
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