Xiamen Dezhengkai Sealing Technology Co., Ltd
                                                                                                           
Verified Supplier
8 Years
Since 2018
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Custom Molded Heat-Resistant Silicone HNBR EPDM Rubber Gaskets -60°C to +230°C Temperature Range 20-90 Shore A Hardness

Price Negotiable
Price: Negotiations
MOQ: 100PCS
Delivery Time: 15-20 days
Brand: DZK
Product Description
We specialize in manufacturing custom molded heat-resistant gaskets and seals using advanced silicone, HNBR, and EPDM rubber compounds. Our precision-engineered sealing solutions withstand extreme temperatures, harsh environments, and demanding operating conditions while maintaining perfect sealing integrity.
Custom molded silicone gasket sample with heat-resistant properties HNBR and EPDM rubber seals for industrial applications
Material Performance Specifications
Silicone Gaskets
  • Temperature Range: -60°C to +230°C (up to +300°C for short periods)
  • Key Features: Excellent ozone/weather resistance, electrical insulation, medical-grade options
  • Application Scenarios: Extreme temperature cycling, medical devices, electrical enclosures
HNBR (Hydrogenated Nitrile) Seals
  • Temperature Range: -40°C to +150°C (short term to +165°C)
  • Key Features: Superior oil/fuel resistance, excellent mechanical properties, improved heat aging
  • Best For: Automotive engines, oil/gas applications, aggressive fluid environments
EPDM Rubber Gaskets
  • Temperature Range: -50°C to +150°C (short term to +175°C)
  • Key Features: Outstanding weather/ozone resistance, steam/water resistance, cost-effective
  • Best For: Outdoor applications, HVAC systems, plumbing, electrical enclosures
Technical Specifications Comparison
Parameter Silicone HNBR EPDM
Temperature Range -60°C to +230°C -40°C to +150°C -50°C to +150°C
Hardness Range 20-80 Shore A 40-90 Shore A 30-90 Shore A
Tensile Strength 8-12 MPa 15-25 MPa 10-18 MPa
Compression Set Excellent Good to Very Good Very Good
Key Strengths Extreme temp, electrical, medical Oil/fuel/abrasion resistance Weather/steam/ozone resistance
Customization Capabilities
  • Complex Geometries: Intricate shapes, undercuts, and multi-level designs
  • Multiple Durometers: 30 Shore A to 80 Shore D hardness options
  • Color Coding: Custom colors for easy identification and branding
  • Reinforcement Options: Fabric, metal inserts, or composite structures
  • Surface Treatments: Lubricious coatings, adhesion promoters, anti-static
Industry Applications
Automotive & Transportation
  • Engine bay gaskets and seals
  • Turbocharger connections
  • Exhaust system components
  • Cooling system seals
  • Electrical connector seals
Industrial Equipment
  • Oven and furnace door seals
  • Heat exchanger gaskets
  • Industrial dryer seals
  • Process equipment seals
  • Power generation components
Electrical & Electronics
  • Electrical enclosure gaskets
  • LED lighting seals
  • Transformer gaskets
  • Electronic housing seals
  • High-temperature connector seals
Custom molded rubber gasket for industrial machinery Precision silicone seals for automotive applications EPDM rubber gaskets for HVAC and plumbing systems
Frequently Asked Questions
How to choose materials?
Material selection depends on the operating environment, including medium exposure, temperature ranges, pressure conditions, and specific application requirements.
How to deliver the goods?
For small orders, we deliver via express carriers (DHL, FEDEX, UPS, TNT). For large orders, we provide air or sea freight options.
Are you a manufacturer?
Yes, we specialize in manufacturing various hydraulic and pneumatic sealing products. Our quality system is ISO 9001:2015 certified, and materials comply with REACH and RoHS regulations. We accept customization and OEM production.
Do you provide samples? Is it free?
Yes, we provide samples free of charge, but customers are responsible for freight costs.
How is the quality?
All manufacturing processes conform to ISO-9001:2015 standards, with 100% inspection conducted before shipment.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Xiamen Dezhengkai Sealing Technology Co., Ltd
Location No55 north pingcheng road.Haicang district,Xiamen City,Fuiian Province.China.
Contact Person Gao

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