Material Development: From Concept to Custom Formulation in 14 Days
Problem Statement
High-pressure sealing applications in EV battery cooling systems demand materials resistant to thermal degradation at 200°C and minimal compression set after 1,000 cycles. Standard EPDM compounds fail due to insufficient thermal stability and compression set exceeding 40%.
Material Science Analysis
Fluorocarbon elastomers (FKM) outperform EPDM and NBR in high-temperature environments due to their high fluorine content (66-70%). This molecular structure provides superior chemical resistance and thermal stability. HNBR, while offering good tensile strength, lacks the thermal endurance required for EV cooling systems.
Technical Specs
- Material: Custom FKM Compound
- Shore A Hardness: 75 ± 5
- Tensile Strength: 18 MPa
- Elongation at Break: 250%
- Temperature Range: -20°C to 210°C
- Compression Set: 15% (22 hours at 200°C)
Technical Comparison
| Parameter | Custom FKM | EPDM | HNBR |
|---|---|---|---|
| Temperature Range (°C) | -20 to 210 | -40 to 150 | -30 to 180 |
| Compression Set (%) | 15 | 40 | 25 |
| Tensile Strength (MPa) | 18 | 12 | 20 |
| Chemical Resistance | Excellent | Good | Very Good |
Standard Compliance
RubberQ’s IATF 16949-certified process ensures batch-to-batch consistency. Custom FKM formulations comply with ASTM D2000 for material callouts and ISO 3601 for sealing performance. Adhesion testing follows ASTM D429 protocols, guaranteeing zero delamination in rubber-to-metal bonding applications.
For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.
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