High Temp Rubber Gasket
Reliable Sealing Solutions for Extreme Heat Applications
Introduction
When equipment operates under extreme heat, ordinary sealing materials simply don't last. That's where a high temp rubber gasket becomes critical.
At Xiamen Jinshun Sealing Technology Co., Ltd., we design and manufacture custom high temperature rubber gaskets that maintain sealing performance in harsh thermal, chemical, and mechanical environments. Since 2002, we've supported global brands across food processing, automotive, electronics, water systems, and industrial machinery with stable, compliant, and long-lasting sealing solutions.
If you're looking for a reliable high temp rubber gasket manufacturer in China, this page will help you understand materials, performance limits, and how to choose the right gasket for your application.
What Is a High Temp Rubber Gasket?
A high temp rubber gasket is a sealing component made from elastomeric or composite materials designed to withstand continuous or intermittent exposure to elevated temperatures, while maintaining elasticity, compression recovery, and chemical resistance.
Compared to standard rubber gaskets, high temperature gaskets are engineered to perform in environments involving:
- Heat
- Flame or exhaust
- Hot fluids and steam
- Aggressive chemicals
- Pressure cycling
Depending on material selection, operating temperatures can range from 177°C (350°F) up to over 1260°C (2300°F).
Why Choose Jinshun High Temp Rubber Gaskets?
With over 20 years of manufacturing experience, Jinshun is more than a supplier-we are a long-term sealing partner.
Our Strengths at a Glance
- Established in 2002
- ISO 9001:2015 & ISO 14001:2015 certified
- In-house R&D, tooling, and production
- Full OEM / ODM customization
- Stable quality for mass production
- Trusted by domestic and international brands
All raw materials comply with RoHS, REACH, and PAHs, and many products are certified by FDA, LFGB, NSF, WRAS, KTW-W270, ACS, and UL, depending on application.
High Temp Rubber Gasket Materials We Offer
Choosing the right material is the key to performance and service life. Below are the most commonly used high temperature rubber gasket materials we manufacture.
Elastomer-Based High Temperature Materials
| Material | Continuous Temp Range | Key Advantages | Typical Applications |
|---|---|---|---|
| Silicone Rubber | 204–260°C (400–500°F) | Heat stable, odorless, FDA compliant | Food, water, electronics |
| Fluorosilicone | 204–260°C | Fuel & oil resistance | Aerospace, automotive |
| Viton® (FKM) | 204–260°C | Chemical & fluid resistance | Oil, fuel, solvents |
| EPDM | Up to 204°C | Steam & weather resistance | Water systems |
| Viton® Sponge | -40–232°C | Soft sealing + heat resistance | Uneven surfaces |
| Silicone Sponge | -73–260°C | Dust, rain & fire resistance | Enclosures |
| Conductive Silicone | -73–260°C | EMI shielding + heat resistance | Electronics |
| Silicone Coated Fiberglass | Up to 260°C | Flame & heat barrier | Thermal insulation |
High-Temperature Non-Rubber & Composite Options
For extreme conditions beyond elastomer limits, we also supply:
| Material | Max Temperature | Key Features |
|---|---|---|
| Compressed Non-Asbestos | 400–510°C (750–950°F) | Steam & pressure resistance |
| Ceramic Fiber (Fiberfrax®) | Up to 1260°C (2300°F) | Ultra-high heat insulation |
| PTFE / Expanded PTFE | Up to 315°C (600°F) | Chemical resistance |
| Flexible Graphite / Carbon | Up to 2760°C (5000°F) | Extreme heat & pressure |
| Nomex® 410 | Up to 220°C (428°F) | Electrical insulation |
| Kapton® Film | 240°C continuous | Electronics & insulation |
Typical Applications of High Temp Rubber Gaskets
Our custom high temp rubber gaskets are widely used in:
- Food & drinking water systems
- Sanitary and bathing products
- Automotive engines & exhaust systems
- Electrical & electronic enclosures
- Industrial machinery & equipment
- HVAC and energy systems
Each gasket is designed to meet real working conditions, not just lab data.
Customization Capabilities
We support full OEM / ODM high temp rubber gasket customization, including:
- Custom shapes & profiles
- Tight tolerance die-cutting or molding
- Material selection by temperature & media
- Hardness control (Shore A)
- Color, surface finish & branding
- Certification support for target markets
Whether you need small batch prototyping or high-volume production, we deliver consistent results.
Quality & Compliance You Can Trust
Quality is not optional-it's our foundation.
- ISO 9001 & ISO 14001 certified systems
- Incoming material inspection
- In-process dimensional & performance checks
- Batch traceability
- Compliance documentation support
This is why Jinshun is a long-term strategic partner for many well-known enterprises worldwide.
FAQs – High Temp Rubber Gasket
Q1: What temperature qualifies as "high temperature" for rubber gaskets?
Typically, anything above 177°C (350°F) is considered high temperature for elastomeric gaskets.
Q2: Can rubber gaskets really handle extreme heat?
Yes, with the right material. Silicone, Viton®, and composite materials are specifically engineered for heat resistance.
Q3: Are high temp rubber gaskets safe for food contact?
Food-grade silicone gaskets certified by FDA or LFGB are safe for direct food and drinking water contact.
Q4: Do you offer custom designs based on drawings?
Absolutely. We manufacture strictly according to customer drawings, samples, or application requirements.
Why Global Buyers Choose Jinshun
- Proven manufacturing since 2002
- Stable quality for long-term supply
- Competitive pricing without cutting corners
- Clear communication & fast response
- Strong export experience
We don't just sell gaskets-we help you reduce risk, improve product reliability, and protect your brand.
Looking for a trusted High Temp Rubber Gasket manufacturer in China?
👉 Contact Xiamen Jinshun Sealing Technology today
- OEM / ODM support
- Certified materials
- Engineering guidance
- Fast quotation
Let's build sealing solutions that perform-even under extreme heat.
