Prototyping Services: Fast-Track Sampling for Engineering Validation
Problem Statement
Engineers require rapid prototyping of rubber components to validate performance under extreme conditions. Common failures include:
- Compression set exceeding 30% after 1,000 cycles at 150°C
- Swelling >10% in ASTM Oil #3 immersion (125°C/70hr)
- Bond failure between rubber and stainless steel under thermal cycling (-40°C to 200°C)
Material Science Analysis
Standard NBR compounds fail above 120°C due to acrylonitrile chain scission. RubberQ’s FKM-70 prototype material uses:
- 65-70% fluorine content for thermal stability
- Peroxide cure system for compression set resistance
- Surface-activated carbon black for metal adhesion
Technical Specifications
| Parameter | FKM-70 | Standard NBR | EPDM |
|---|---|---|---|
| Shore A Hardness | 70 ±3 | 70 ±5 | 70 ±4 |
| Tensile Strength (MPa) | 18.5 | 12.0 | 10.2 |
| Elongation at Break (%) | 220 | 350 | 400 |
| Compression Set (70hr/200°C, %) | 15 | 45 | 35 |
| Temperature Range (°C) | -25 to +230 | -40 to +120 | -50 to +150 |
Standard Compliance
RubberQ’s IATF 16949-certified process guarantees:
- ±2% batch-to-batch variation in cure characteristics (ASTM D2084)
- ISO 3601 Class A surface finish on all prototype seals
- Full traceability of raw materials (ASTM D2000 BF, HK)
For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.
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