Epoxy Bus Bar Coating
As an industry leader focusing on new energy power connection, our Epoxy Bus Bar Coating has become a core connection component in new energy fields such as electric vehicles and photovoltaic solar systems with excellent insulation performance, efficient conductivity, and strong environmental adaptability. The product uses high-purity electrolytic copper (purity ≥ 99.95%) as the substrate, adopts advanced epoxy powder coating technology, and combines diversified surface treatment and insulation solutions. The coating thickness (3-12μm), insulation materials, and size specifications can be customized according to customer needs, providing global customers with full-process power connection solutions from design to mass production.
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Product Introduction
Epoxy Bus Bar Coating is a composite conductive component with a high-conductivity copper busbar as the core and a high-performance insulating material (such as epoxy powder) coated on the surface. It integrates good conductivity, insulation, heat resistance, and corrosion resistance, and is widely used in electric vehicle (EV) high-voltage systems, photovoltaic power generation (PV) components, energy storage systems, industrial distribution cabinets, and rail transit, which have extremely high requirements for power transmission safety and system stability.
Compared with traditional bare copper busbars, epoxy-coated insulated busbars significantly improve the system safety level, extend service life, and optimize space utilization through integrated packaging. It is an indispensable key component in new energy and electrical automation systems.
Typical parameter specifications (customizable range)
| Item | Parameter range |
| Copper busbar thickness | 1mm ~ 20mm |
| Copper busbar width | 5mm ~ 100mm |
| Coating type | Silver plating / Tin plating / Nickel plating |
| Coating thickness | 3μm ~ 12μm (customizable) |
| Insulation method | Epoxy powder / PET paper / PVC / PE tube / PA66 shell |
| Operating temperature range | 45°C ~ +150°C |
| Bending radius | 3~5 times the thickness |
| Resistance value(@20℃) | ≤0.01~0.05Ω/m |
Five quantifiable core selling points
Excellent insulation · Safe and visible
Epoxy coating thickness 3\~12μm
Operating temperature range -45℃ to 150℃, adaptable to extreme environments
Multiple color logos (orange, green, gray), clear and easy to identify
Provide PET insulation paper, PVC, PE heat shrink tube, PA66 plastic shell, and other insulation options
Support GTS, KREMPEL, and other brand materials, stable quality
Excellent conductivity · High loss reduction efficiency
Use high-purity Copper Busbars at Coating, silver/tin/nickel plating optional, conductivity＞99.9%
Customizable coating thickness, anti-oxidation, low contact resistance
Ultrasonic cleaning treatment, clean surface, more reliable connection
The resistance value is lower than 0.01Ω/m, which is suitable for high-voltage and high-current new energy systems
Compact structure · Easy installation
Epoxy is close to the Epoxy Powder Coated Busbars, reducing the redundant layer thickness and saving space.
Suitable for compact environments such as battery packs and control cabinets
Customizable L-type, U-type, Z-type, perforated stacking structure, etc.
The minimum bending radius is only 3\~5 times the thickness, which is suitable for precise installation needs.
Flexible customization · Meet complex needs
Support full customization of size, electroplating, insulation form, and color identification.on
Rich terminal processing methods: drilling, bending, stamping, integrated functional parts, etc.
Can integrate temperature control, sampling holes, isolation slots, and enhance system integration
Engineering support covers the entire process of selection, current calculation, thermal simulation, etc.
Quality assurance · Complete standards
Passed ISO9001 / IATF16949 certified, full traceability of production
Factory inspection: conductivity, voltage resistance, salt spray, aging, thermal shock, etc.
Environmentally friendly epoxy powder is used, in compliance with RoHS / REACH standards.rds
Service life exceeds 10 years +, reliability verified by the market
Widely serves international mainstream EV car companies, energy storage plants, and rail transit projects
Product Application Fields
New energy vehicles
battery pack connection, charging system, high-voltage distribution cabinet, etc.
Photovoltaic system
photovoltaic inverter, energy storage system, solar panel connection, etc.
Power equipment
switch cabinet, distribution panel, transformer, UPS uninterruptible power supply, etc.
Railway transportation
subway, high-speed rail, signal system, lighting system, etc.
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