High Temperature Silicone Gasket is compression molded or die-cut from premium high-heat silicone (VMQ) compound. It maintains stable elasticity and sealing performance continuously up to 250℃, short peak temperature up to 280℃, with excellent ozone, UV and weather resistance, good electrical insulation and non-toxic property. It is mainly used for static sealing under high heat conditions. Food-grade and flame retardant formulations are available. We support custom shapes, sizes and hardness according to drawings or samples for ovens, heat exchangers, high-temperature electrical equipment, new energy modules and industrial heating machinery.
Item No :
Lead-S004Brand :
LEADUsage :
new energy battery packs, electrical cabinets, EV charging systems, rail transit, high-voltage connectors and outdoor lighting,Size :
custom sizeMOQ :
500-1000PCSLead Time :
7-15daysPayment :
100% TT, L/C at sigh, Paypal, Wester unionHigh Temperature Resistant (-40C to +200C) Silicone Gaskets Custom Industrial Grade Parts with Cutting Service
High temperature silicone gasket (VMQ) is molded or die-cut from heat-resistant silicone. It keeps stable sealing at high temperature, with excellent ozone, UV and weather resistance, good insulation and non-toxic performance. Food grade and flame retardant options are available. Not fit for mineral oil, fuel and hydrocarbon solvents. Custom sizes and shapes are acceptable.
| Item Name | High Temperature Resistant (-40C to +200C) Silicone Gaskets Custom Industrial Grade Parts with Cutting Service |
| Material | silicone |
| Hardness | 30-80Shore A |
| Color | We can customize it according to your requirements. |
| Manufacturing | Compression molding |
| Working Temperature | -60℃ ~ +230℃ |
| Price Tip | The price shown above is just for reference, fnal actual price depends on your design, material request, surface treatment order aty, package request etc. |
| Certifications | RoHS, REACH, UL94 V-0 material certificate |
Our molded rubber components comply with GB/T 3672‑2002 (ISO 3302‑1:1996). Four tolerance grades M1~M4 are optional. We separate F fixed dimensions and C closure dimensions to meet your precision requirements for custom rubber seals.
We can provide complete physical test reports according to your material requirements, including hardness, tensile strength, elongation, compression set, temperature range and chemical resistance.
We are able to supply COA, COC and compliance documents for REACH, RoHS, FDA and UL. Batch traceability is guaranteed for custom molded sealing parts.
Xiamen Lead Rubber & Plastic Industry Co., Ltd. is a professional factory focused on the design and fabrication of rubber & plastic molds, as well as custom molded rubber and plastic components.
We specialize in exporting O-rings, rubber gaskets, various rubber seals, rubber bumpers, molded plastic parts, precision tooling molds and other custom molded products.
Our in-house mold workshop develops custom molds for a wide range of rubber and plastic materials. We design and manufacture tooling strictly according to customers’ 2D/3D drawings, samples and technical specifications.
We provide full one-stop OEM & ODM solutions for global buyers, covering mold development, material formulation, prototyping, mass production and quality inspection. Our products widely serve automotive, hydraulic, pneumatic and general industrial sealing applications.
Custom rubber oring /gasket seal Manufacturing
Lead Rubber is a professional manufacturer specializing in custom molded rubber sealing components and mold fabrication.
We mainly export custom rubber O-rings, gaskets, various rubber seals, rubber bumpers, precision molds and other custom molded rubber & plastic parts.
We develop custom molds for a wide range of rubber and plastic materials based on customers’ drawings, samples and technical requirements. We deliver one-stop OEM & ODM custom sealing solutions for global buyers.
Lead rubber offers full OEM development for custom molded rubber O-rings, gaskets and seals, plus custom plastic components.
Following your drawings, samples or technical specifications, we manufacture tailored sealing parts with our in-house mold workshop covering mold design, CNC machining, trial testing and validation.
We support multiple materials including NBR, EPDM, FKM, Silicone and engineered plastics. Our engineering team collaborates with you for prototype sampling and mass production tooling to balance quality, lead time and cost.
Lead rubber has rigorous quality control & testing system covers the full production cycle: incoming raw material inspection, in-process monitoring, sample validation and final batch release for all custom molded rubber & silicone components. Every molded gasket and seal is inspected to meet drawing tolerances, material specs and global compliance standards, delivering stable sealing performance for electronics, energy storage, EV and industrial applications.
Lead Rubber offers packaging options for international shipments, including PE bags, export carton, and palletized packaging where required. Customized packaging, logo printing, and product labeling can be discussed according to order quantity and customer requirements.
Packaging methods are selected according to the product type, shipment method, and destination requirements. Please confirm any special packaging or labeling instructions before placing an order.
1. What is silicone gasket?
Silicone gasket (VMQ gasket) is a sealing component made of silicone rubber. It features a wide temperature range, excellent weather resistance and non-toxic property, widely used for sanitary and high-temperature static sealing.
2. What is the working temperature range of silicone gasket?
Standard continuous service temperature: -60℃ to +230℃. Special formulations can support higher peak temperature.
3. What media does silicone gasket resist?
It works well with dry heat, air, ozone, UV, water, steam and weak aqueous solutions. Food grade silicone is compatible with food contact.
4. What media is silicone gasket NOT suitable for?
Not recommended for mineral oil, fuel, hydrocarbon solvents, concentrated acids and strong alkalis. For oil service, choose NBR, HNBR or FKM.
5. Is silicone gasket suitable for dynamic sealing?
It is mainly designed for static sealing. It is not the first choice for friction dynamic sealing.
6. Can you customize silicone gasket in different shapes, hardness and colors?
Yes. We offer compression molding and die cutting per drawings or samples. Hardness: 30–90 Shore A. Colors include transparent, white, red, black, blue and custom colors.
7. What certifications are available for silicone gasket?
RoHS, REACH, FDA, LFGB and USP Class VI grades are available. Our factory holds ISO9001 certification.
8. What are the main advantages of silicone gasket compared with EPDM gasket?
Silicone withstands much higher temperature. EPDM has better steam resistance and lower cost for general outdoor water sealing.
9. What are typical applications for silicone gasket?
Food machinery, oven, medical instruments, new energy battery packs, electrical cabinets, lighting and outdoor solar equipment.
10. What tolerance standard do you follow?
We follow ISO 3302-1 for rubber dimensional tolerance.
Request a Quote for Silicone rubber Gasket,Contact Lead Rubber with your specifications.
Please submit 2D/3D CAD drawings or physical samples, dimensions, rubber material, hardness, quantity, application and special performance requirements for quotation. If custom mold tooling is needed, also advise cavity quantity and mold steel preferences.
Contact Person: Sunny
Tel: 0086-13400616316
WhatsApp: 0086-13400616316
Email: sales1@leadindustryproducts.com
Contact Person: Lucy
Tel: 0086-13328793979
WhatsApp: 0086-13328793979
Email: sales4@leadindustryproducts.com
Contact Person: Nana
Tel: 0086-15872688050
WhatsApp: 0086-15872688050
Email: sales2@leadindustryproducts.com
Pricing Notice: The displayed price is for reference only. The final quotation depends on product design, material selection, dimensions, tooling requirements, order quantity, surface treatment where applicable, and packaging specifications.
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High Temperature Silicone Gasket is compression molded or die-cut from premium high-heat silicone (VMQ) compound. It maintains stable elasticity and sealing performance continuously up to 250℃, short peak temperature up to 280℃, with excellent ozone, UV and weather resistance, good electrical insulation and non-toxic property. It is mainly used for static sealing under high heat conditions. Food-grade and flame retardant formulations are available. We support custom shapes, sizes and hardness according to drawings or samples for ovens, heat exchangers, high-temperature electrical equipment, new energy modules and industrial heating machinery.
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