Engineering Knowledge Hub
Comprehensive guides, standards, and technical documentation to help you design and specify rubber components with confidence.
Material Selection Guide
Compare elastomer properties to select the optimal material for your application requirements.
FKM (Viton®)
Fluoroelastomer with exceptional chemical resistance and high-temperature stability.
Applications
- •Excellent chemical resistance
- •High temperature tolerance
- •Superior oil/fuel resistance
NBR (Nitrile)
Nitrile rubber offers excellent oil resistance and mechanical properties at competitive cost.
Applications
- •Cost-effective solution
- •Good oil resistance
- •Wide hardness range available
EPDM
Ethylene propylene diene monomer with outstanding weather and ozone resistance.
Applications
- •Excellent weather resistance
- •Superior water/steam resistance
- •Good electrical insulation
Silicone
Versatile elastomer with extreme temperature range and biocompatibility.
Applications
- •FDA compliant grades available
- •Extreme temperature range
- •Excellent compression set
Design Recommendations
Best practices for rubber part design to ensure manufacturability and optimal performance.
Wall Thickness Guidelines
Uniform wall thickness is critical for consistent vulcanization and preventing defects. Avoid abrupt changes in cross-section.
Key Tips
- ✓Minimum wall thickness: 0.5mm for most materials
- ✓Maintain uniform thickness to prevent sink marks
- ✓Use gradual transitions between thick and thin sections
Draft Angle Requirements
Proper draft angles ensure clean part ejection from molds and prevent damage during demolding.
Key Tips
- ✓Minimum 0.5° draft for exterior walls
- ✓1-2° recommended for textured surfaces
- ✓Internal features may require 1-3° draft
Shrinkage Compensation
All rubber materials shrink during curing. Design molds with appropriate shrinkage allowances for accurate final dimensions.
Key Tips
- ✓NBR/FKM: 1.5-2.5% linear shrinkage
- ✓EPDM: 1.0-2.0% linear shrinkage
- ✓Silicone: 2.0-3.0% linear shrinkage
Industry Standards
Key international standards governing rubber component design, tolerances, and quality.
Fluid Power Systems - O-Rings
Defines inside diameters, cross-sections, tolerances and size identification codes for O-rings used in fluid power applications.
Rubber - Tolerances for Products
Specifies classes of dimensional tolerances for molded, extruded, and calendered rubber products.
Standard Classification for Rubber
Classification system for rubber materials in automotive applications based on material requirements.
Quality Management Standard
International automotive quality management system standard ensuring consistent product quality and continuous improvement.
Frequently Asked Questions
Common questions about rubber component design, manufacturing, and quality assurance.
Technical Downloads
Download comprehensive technical documentation, guides, and reference materials.
Need Custom Specifications?
Our engineering team can provide application-specific recommendations and develop custom formulations for your unique requirements.
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