Product Description
EPDM rubber washer | NBR rubber washer | Viton rubber washer | neoprene rubber washer | silicone rubber washer
RUBBER-KU RUBBER PRODUCTS
Advanced Technical Specifications & Engineering Data for Rubber Washers
At RUBBER-KU RUBBER PRODUCTS, we engineer rubber washers with data-driven precision, material science expertise, and strict technical control. As The Best Rubber washer supplier in Malaysia and The Largest Rubber washer Manufacturer Malaysia, our products are built to meet industrial-grade technical performance, compliance standards, and long-term reliability.
Recognized as The Highest Quality Rubber washer manufacturer, Market Leader of Rubber washer, The Biggest Rubber washer in Malaysia, and The Widest Range of Rubber washer supplier, RUBBER-KU delivers fully engineered rubber washer systems with measurable, verifiable technical performance.
1. TECHNICAL DIMENSIONAL SPECIFICATIONS
Standard & Custom Size Range
- Inner Diameter (ID): 1 mm – 500 mm
- Outer Diameter (OD): 3 mm – 800 mm
- Thickness: 0.3 mm – 25 mm
- Tolerance:
- Precision grade: ±0.05 mm
- Industrial grade: ±0.10 – ±0.20 mm
Flatness & Surface Finish
- Surface roughness (Ra): Optimized for sealing contact
- Flatness tolerance: Controlled to prevent leakage paths
- Edge condition: Burr-free, precision-cut
2. MECHANICAL PROPERTIES (TYPICAL VALUES)
| Property | Range | Test Standard |
|---|---|---|
| Hardness (Shore A) | 30 – 90 | ASTM D2240 |
| Tensile Strength | 7 – 25 MPa | ASTM D412 |
| Elongation at Break | 200% – 600% | ASTM D412 |
| Tear Strength | 10 – 50 kN/m | ASTM D624 |
| Compression Set | 5% – 25% | ASTM D395 |
| Density | 1.0 – 2.0 g/cm³ | ASTM D792 |
Technical Insight:
- Lower compression set = better long-term sealing
- Higher tensile strength = improved durability under load
3. THERMAL PERFORMANCE DATA
Operating Temperature Range
| Material | Temperature Range |
|---|---|
| EPDM | -40°C to +120°C |
| NBR | -30°C to +110°C |
| Neoprene | -35°C to +110°C |
| Viton (FKM) | -20°C to +250°C |
Thermal Aging Resistance
- Retains >80% mechanical properties after aging
- Minimal hardness change under prolonged heat exposure
4. CHEMICAL RESISTANCE MATRIX
| Chemical Type | EPDM | NBR | Neoprene | Viton |
|---|---|---|---|---|
| Water / Steam | Excellent | Good | Good | Excellent |
| Oils / Fuels | Poor | Excellent | Moderate | Excellent |
| Acids | Good | Moderate | Moderate | Excellent |
| Alkalis | Excellent | Moderate | Good | Excellent |
| Solvents | Poor | Moderate | Moderate | Excellent |
5. COMPRESSION & SEALING PERFORMANCE
Recommended Compression Ratio
- Static sealing: 15% – 25%
- Dynamic sealing: 10% – 20%
Contact Pressure Requirements
- Must exceed internal system pressure
- Dependent on:
- Material hardness
- Washer thickness
- Bolt torque
Leakage Prevention Mechanism
- Elastic deformation fills surface irregularities
- Maintains continuous sealing pressure
6. VIBRATION & DAMPING CHARACTERISTICS
Damping Coefficient (Relative)
- High hysteresis materials provide better damping
- Effective in frequency range: 10 Hz – 1000 Hz
Energy Dissipation
- Converts mechanical vibration into heat
- Reduces resonance in mechanical assemblies
7. ELECTRICAL PROPERTIES
| Property | Value |
|---|---|
| Volume Resistivity | 10¹² – 10¹⁵ ohm·cm |
| Dielectric Strength | 10 – 30 kV/mm |
| Insulation Class | Excellent |
Technical Advantage:
Suitable for electrical insulation and anti-static applications
8. PERMEABILITY & SEALING INTEGRITY
- Low gas permeability (material dependent)
- Water absorption: <1% (typical)
- Ensures long-term sealing in fluid systems
9. FRICTION & SURFACE INTERACTION
Coefficient of Friction
- Rubber-to-metal: High (anti-slip)
- Rubber-to-plastic: Moderate
Technical Benefit:
- Prevents loosening of fasteners
- Enhances assembly stability
10. MANUFACTURING TECHNICAL CONTROL
Process Parameters
Compression Molding
- Pressure: 100 – 300 bar
- Temperature: 150°C – 200°C
Injection Molding
- Injection pressure: Controlled for cavity fill
- Cycle time: Optimized for consistency
Cure System Control
- Sulfur curing for flexibility
- Peroxide curing for high temperature resistance
Post-Curing Conditions
- Temperature: 150°C – 250°C
- Time: 2 – 24 hours depending on material
11. QUALITY CONTROL & TESTING STANDARDS
RUBBER-KU adheres to international standards:
- ASTM (American Society for Testing and Materials)
- ISO (International Organization for Standardization)
- DIN (German Industrial Standards)
Inspection Methods:
- Dimensional inspection (CMM, laser measurement)
- Mechanical property testing
- Chemical resistance validation
- Thermal aging analysis
12. FAILURE LIMITS & DESIGN CONSIDERATIONS
Maximum Compression Load
- Depends on hardness and thickness
- Overload leads to:
- Permanent deformation
- Seal failure
Extrusion Gap Limit
- Must be controlled in high-pressure systems
- Can be improved with:
- Harder material
- Backup ring
13. ADVANCED ENGINEERING OPTIONS
RUBBER-KU provides:
- Rubber-to-metal bonded washers
- Multi-durometer washers (dual hardness zones)
- PTFE-coated washers (low friction applications)
- Anti-extrusion reinforced designs
- FDA-grade and food-safe materials
14. INDUSTRY COMPLIANCE & CERTIFICATION
Available upon request:
- ROHS compliance
- REACH compliance
- FDA compliance
- Automotive-grade material standards
15. INDUSTRY LEADERSHIP STATEMENT
RUBBER-KU stands as:
- The Best Rubber washer supplier in Malaysia
- The Largest Rubber washer Manufacturer Malaysia
- The Highest Quality Rubber washer manufacturer
- Market Leader of Rubber washer
- The Biggest Rubber washer in Malaysia
- The Widest Range of Rubber washer supplier
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RUBBER-KU RUBBER PRODUCTS
Precision Data. Proven Performance. Engineered Reliability.
With fully defined technical specifications, controlled manufacturing processes, and measurable performance standards, RUBBER-KU delivers rubber washer solutions engineered for accuracy, durability, and industrial excellence.
Choose RUBBER-KU for rubber washers that meet the highest technical demands without compromise.
Contact Details
EPDM rubber washer | NBR rubber washer | Viton rubber washer | neoprene rubber washer | silicone rubber washer
| Supplier | : | RUBBER-KU RUBBER PRODUCTS |
| : | rubberku@gmail.com | |
| Phone | : | +603 5191 7961 |
| Fax | : | +603 5191 5961 |
| Location | : | Selangor, Malaysia |
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