What is EPDM Injection Molding?
Our EPDM injection molding process starts with customized mold design, ensuring each part delivers consistent quality and performance. We use advanced machines to inject EPDM rubber material into finely crafted molds under heat and pressure. After curing and cooling, professional finishing techniques ensure the final rubber EPDM molding product meets exacting standards.
Thanks to our expertise in mold making, process optimization, and quality assurance, we deliver cost-effective, scalable EPDM rubber molding solutions tailored to a range of industries. Whether it’s high-volume production or small-batch prototyping, we guarantee durable, flexible, and reliable results for your EPDM molding needs.
Injection Molding EPDM Parameters Table
| Parameter | Recommended Range |
|---|---|
| Wall Thickness | 1.5mm – 6mm |
| Maximum Part Size | 400mm × 400mm |
| Minimum Feature Size | 0.8mm – 1.5mm |
| Tolerances | ±0.1mm – ±0.3mm |
EPDM Material Properties
EPDM (Ethylene Propylene Diene Monomer) is a high-performance synthetic rubber well-suited for injection moldingdue to its excellent flexibility, aging resistance, and environmental durability.
- Ethylene and Propylene – provide good flexibility and weather resistance
- Diene monomer – allows for vulcanization, improving elasticity and heat resistance
| Property | Density | Tensile Strength | Flexural Strength | Impact Strength (Unnotched) | Heat Deflection Temp (0.45 MPa) |
|---|---|---|---|---|---|
| Value/Description | 0.85 – 1.20 g/cm³ | 7 – 12 MPa | 60-70 MPa | 20 -30 kJ/m² | –40°C to 125°C |
- The above parameters represent the baseline performance of the materials. Actual application should be dynamically optimized based on specific working conditions.
Advantages & Disadvantages of EPDM Injection Molding
EPDM rubber injection molding is highly favored for sealing and insulation due to its excellent environmental resistance and elasticity. However, it also has some trade-offs.
Advantages
- Excellent weather, ozone, and UV resistance
- Stable performance in low and high temperatures
- Good elasticity and compression set resistance
- Suitable for dynamic sealing applications
Disadvantages
- Poor resistance to petroleum-based oils and fuels
- Moderate tear resistance
- Adhesion may require surface treatment
Applications of Injection Molded EPDM
Automotive Industry
- Door seals and window gaskets
- Firewall plugs
- Under-hood rubber parts
- Trunk weatherstrips
HVAC & Construction:
- Pipe seals
- Roof flashing gaskets
- Weatherstripping
- Expansion joint covers
Industrial Applications:
- Cable grommets
- Protective bellows
- Vibration dampers
- Electrical enclosures
Consumer & Outdoor Goods:
- Garden hose fittings
- Waterproof rubber boots
- Appliance gaskets
- Sports gear components
Jiangzhi EPDM Injection Molding Parts are Guaranteed
Cracks often come from stress during cooling, poor mold design, or even using the wrong processing temps. We focus on balanced part design and proper molding conditions to keep your ABS parts crack-free.
