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.