REACH and RoHS 3: Ensuring Compliance in Global Rubber Supply Chains.
# REACH and RoHS 3: Ensuring Compliance in Global Rubber Supply Chains
Problem Statement: Chemical Degradation in EV Battery Seals
Fluid sealing components in EV battery systems face cyclic exposure to:
- Coolant chemicals (ethylene glycol blends)
- High-voltage arcing byproducts
- Thermal cycling from -40°C to 150°C
Standard NBR formulations exhibit 72% faster compression set failure compared to HNBR in 1,000-hour aging tests at 125°C.
Material Science Analysis
Hydrogenated Nitrile (HNBR) outperforms NBR due to:
- Saturated polymer backbone (reduced double bonds)
- Higher acrylonitrile content (34-38%) for fuel resistance
- Thermal stability up to 150°C continuous (ASTM D573)
Technical Specifications
| Parameter | HNBR (RubberQ-4220) | Standard NBR | FKM (Comparative) |
|---|---|---|---|
| Shore A Hardness | 70 ±5 | 65 ±10 | 75 ±3 |
| Tensile Strength (MPa) | 24.5 | 18.2 | 16.8 |
| Elongation at Break (%) | 380 | 450 | 200 |
| Compression Set (22h @ 125°C) | 18% | 45% | 12% |
| REACH SVHC Compliance | Full | Partial (Phthalates) | Full |
Standard Compliance
RubberQ's IATF 16949 process ensures:
- Material traceability through PPAP documentation
- REACH SVHC screening for all raw materials
- RoHS 3 heavy metal testing via XRF spectrometry
- ASTM D3182 mixing procedures
For custom material compound development or IATF 16949 documentation, consult RubberQ's engineering department.
