3240 Epoxy Insulation Board for Battery Packs – High-Temp
Moisture-Resistant, Custom Colors Available
In battery pack assembly, insulation failure due to high
temperature or moisture can lead to short circuits and safety
risks. Our Yellow 3240 Epoxy Board solves this critical pain point:
as a dedicated battery pack insulation board, it combines
exceptional high-temperature resistance, strong moisture
resistance, and reliable electrical insulation—making it ideal for
lithium-ion, LiFePO4, and lead-acid battery packs in EVs, energy
storage systems, and industrial equipment. The bright yellow color
also enables easy visual inspection during assembly, reducing
quality control errors.
1. Core Advantages: Why Choose Yellow 3240 Epoxy Insulation Board?
| Advantage | Key Benefit for Battery Pack Manufacturers |
|---|
| Extreme High-Temp Resistance | Withstands continuous use at 130℃ (short-term up to 180℃), avoiding
deformation or insulation breakdown in high-heat battery operating
environments. |
| Strong Moisture Resistance | Water absorption rate ≤0.1% (24h immersion test), maintaining
insulation performance even in humid or outdoor energy storage
scenarios. |
| Reliable Electrical Insulation | Volume resistivity ≥10¹⁵ Ω·cm, dielectric strength ≥18
kV/mm—effectively isolating positive/negative electrodes to prevent
short circuits. |
| Mechanical Durability | Tensile strength ≥80 MPa, flexural strength ≥120 MPa; resistant to
impact and vibration during battery pack transport and use. |
| Easy Assembly & Inspection | Bright yellow color enables quick visual checks for missing or
misaligned boards; easy to cut, drill, and punch to match custom
battery pack sizes. |
2. Technical Specifications
| Specification | Details | Test Standard |
|---|
| Product Model | 3240 Epoxy Glass Cloth Laminate | IEC 60893-3-2 |
| Color | Standard bright yellow (custom colors available on request) | Visual inspection |
| Temperature Resistance | Continuous operating temp: 130℃; Short-term temp: 180℃ | GB/T 1303.1 |
| Moisture Resistance | Water absorption rate: ≤0.1% (24h, 23℃ distilled water) | IEC 60893-2-1 |
| Electrical Performance | - Volume resistivity: ≥10¹⁵ Ω·cm (23℃)
- Dielectric strength: ≥18 kV/mm (23℃)
- Dielectric constant: 4.5 (1 MHz) | IEC 60250; IEC 60243-1 |
| Mechanical Performance | - Tensile strength: ≥80 MPa (longitudinal)
- Flexural strength: ≥120 MPa (longitudinal)
- Impact strength: ≥15 kJ/m² | GB/T 1040.4; GB/T 9341; GB/T 1043.1 |
| Standard Thickness | 0.5mm, 1.0mm, 1.5mm, 2.0mm, 3.0mm, 5.0mm | GB/T 1303.1 |
| Standard Size | 1000mm*2000mm, 1220mm*2440mm (custom sizes cuttable) | Customizable |
3. Application Scenarios
Our Yellow 3240 Epoxy Insulation Board is a must-have for battery
pack safety across industries, where insulation reliability
directly impacts product lifespan and safety:
- Electric Vehicles (EVs): Insulation between battery modules, and between modules and the
pack casing—resists high heat from battery charging/discharging.
- Energy Storage Systems: Used in home, commercial, and grid-scale lithium battery
packs—moisture resistance adapts to outdoor or basement
installation environments.
- Industrial Battery Packs: Insulation for lead-acid or lithium battery packs in electric
forklifts, AGVs, and backup power systems—withstands mechanical
vibration and workshop humidity.
- Consumer Electronics: Smaller-cut boards for portable battery packs (e.g., power banks)
and laptop batteries—ensures safe insulation in compact designs.
4. Customization & Processing Services
To fit your specific battery pack design, we offer flexible
customization and pre-processing options:
| Service Type | Available Options |
|---|
| Size Cutting | Cut to custom dimensions (minimum 50mm*50mm) with ±0.1mm precision |
| Hole Drilling | Pre-drilled mounting holes (M2–M10) or positioning holes—per your
CAD drawings |
| Edge Processing | Deburred edges (to avoid damaging battery components) or chamfered
edges (for easy assembly) |
| Surface Treatment | Anti-static coating (optional, for electronics-grade battery packs) |
| Packaging | Standard: PE film + cartons; Custom: Vacuum packaging (for
long-distance shipping) or wooden crates (for bulk orders) |
5. Quality Assurance & Order Support
- Quality Certifications: Compliant with RoHS, REACH, and UL 94 V-0 flame retardant
standards—meets global safety requirements for electronics
components.
- Batch Testing: Every production batch undergoes temperature resistance,
insulation, and moisture absorption testing—test reports provided
free of charge for bulk orders.
- MOQ & Lead Time: Low MOQ of 10 sheets for standard sizes; ships within 2–3 days.
Custom-cut orders deliver within 4–5 days.
- After-Sales: Free sample sheets (up to 3 pieces) for performance testing;
1-year warranty for quality issues (e.g., uneven thickness,
insulation failure).
If you need to confirm the right thickness or size for your battery
pack, send us your assembly drawings—our engineering team will
provide free recommendations. Contact us today for a detailed
quote!
