Silicone Rubber Sheet
Model:KXT B400MUQ
Kaxite offers complete range of Silicone Rubber Sheet, according to different requirement offers a variety of material rubber sheets, we produce all kinds of rubber products according to customer's demands. Manufacturer gaskets, etc. Rubber sheets reinforced with cloth or wire.
Silicone Rubber Sheet – KXT B400MUQ
Kaxite Sealing, a leading China silicone rubber sheet manufacturer, offers the KXT B400MUQ Silicone Rubber Sheet – a versatile, high-performance elastomer sheet designed for demanding sealing, gasketing, and cushioning applications. Manufactured from high‑quality silicone polymer, this sheet delivers exceptional flexibility and resilience across a wide temperature range, from –85 °C to +215 °C (with special grades up to +315 °C). Its unique combination of properties – including excellent resistance to ozone, UV, moisture, and weathering – makes it the material of choice for food processing, pharmaceutical, electrical, and general industrial applications.
Why KXT B400MUQ? Silicone rubber stands out among elastomers for its ability to maintain key physical properties under extreme thermal conditions. It remains flexible and resilient even at cryogenic temperatures, while showing low compression set and excellent electrical insulation. The material is odourless, tasteless, and physiologically inert, making it ideal for contact with food and sensitive pharmaceutical products. Available in a broad range of colours (red, white, blue, grey, black) and hardness grades (40° to 80° Shore A), we can tailor the sheet to your exact application requirements.
As a trusted rubber sheet supplier in China, Kaxite offers KXT B400MUQ in thicknesses from 0.3 mm to 12 mm, widths up to 1.5 m, and lengths up to 10 m (or custom rolls). Whether you require die‑cut gaskets, custom‑shaped seals, or bulk sheet for maintenance stock, we deliver consistent quality with full traceability. Request a free sample or get a wholesale quote today.
Temp. Range (Std)-85°C to +215°C
Hardness40 – 80 Shore A
Density1.2 – 1.4 g/cm³
Tensile Strength≥ 5 MPa
Elongation≥ 200%
Thickness0.3 – 12 mm
Why KXT B400MUQ Silicone Rubber Sheet?
- ✅ Extreme Temperature Flexibility – –85 °C to +215 °C (special grades to +315 °C), retains elasticity
- ✅ Excellent Ozone & UV Resistance – Unaffected by weathering, ideal for outdoor and sealing applications
- ✅ Low Compression Set – Maintains sealing force over time, reducing re‑torquing
- ✅ FDA‑Compliant Options – Food‑grade and medical grades available for safe contact
- ✅ Outstanding Electrical Insulation – High dielectric strength, suitable for electrical components
- ✅ Customisable – Wide hardness range, colours, and thicknesses to suit your design
ISO 9001:2015 FDA 21 CFR 177.2600 (on request) REACH & RoHS Compliant UL 94 V‑0 (flame retardant options) Wide Colour & Hardness Range
Key Advantages of KXT B400MUQ Silicone Rubber Sheet
Exceptional Thermal Stability – Remains flexible from –85 °C to +215 °C (intermittent to +315 °C), making it suitable for both deep‑freeze and high‑heat environments.
Superior Weathering Resistance – Highly resistant to ozone, UV radiation, moisture, and sea water – ideal for outdoor and marine applications.
Low Compression Set & High Resilience – Retains its sealing ability under prolonged compression, reducing maintenance and re‑torquing frequency.
Excellent Electrical Insulation – Naturally insulating, with high dielectric strength and low conductivity – suitable for electronic and electrical applications.
Food‑Grade & Medical Grades Available – FDA‑compliant and biocompatible options for direct contact with food, beverages, and pharmaceuticals.
Wide Hardness & Colour Range – Hardness from 40 to 80 Shore A, and colours including red, white, blue, grey, black – customisable to your specification.
Material Composition & Available Formats
Base Material
- High‑consistency silicone rubber (HCR)
- Density: 1.2 – 1.4 g/cm³ (ASTM D297)
- Hardness: 40 – 80 Shore A (ASTM D2240)
- Colours: Translucent, white, red, blue, grey, black (custom available)
Available Dimensions
- Thickness: 0.3 – 12 mm (0.012″ – 0.472″)
- Width: 1.0 m, 1.2 m, 1.5 m (custom slitting available)
- Length: Rolls up to 10 m, or cut sheets
- Custom die‑cut gaskets and strips available
Additional options: Flame‑retardant grades, electrically conductive grades, and fabric‑reinforced sheets available for volume orders. Contact us for specific requirements.
Technical Specifications (Typical Values)
| Property | Value / Range | Test Standard |
|---|---|---|
| Colour | Red, white, blue, grey, black, custom | Visual |
| Hardness (Shore A) | 40 – 80 (standard 60) | ASTM D2240 |
| Density (g/cm³) | 1.2 – 1.4 | ASTM D297 |
| Tensile Strength (MPa) | ≥ 5 | ASTM D412 |
| Elongation at Break (%) | ≥ 200 | ASTM D412 |
| Tear Strength (N/mm) | ≥ 15 | ASTM D624 |
| Compression Set (22h @ 150°C, %) | ≤ 30 | ASTM D395 |
| Temperature Range (Continuous) | -85°C to +215°C | ASTM D2000 |
| Max Intermittent Temperature | +315°C | Internal |
| Ozone Resistance | Excellent (no cracking) | ASTM D1149 |
| Dielectric Strength (kV/mm) | ≥ 20 | ASTM D149 |
* Values are typical for 60 Shore A, 2.0 mm thickness. Variations may occur with different hardness and thickness. Request full data sheet
Silicone Rubber vs EPDM vs Natural Rubber – Comparison
| Property | Silicone (KXT B400MUQ) | EPDM | Natural Rubber |
|---|---|---|---|
| Temperature Range | -85°C to +215°C | -40°C to +120°C | -40°C to +80°C |
| Ozone / UV Resistance | Excellent | Good | Poor |
| Compression Set | Low | Moderate | High |
| Electrical Insulation | Excellent | Good | Good |
| Food‑Grade / FDA | Available | Limited | Not typical |
| Tear Resistance | Good | Good | Excellent |
| Typical Hardness Range | 40 – 80 Shore A | 40 – 90 Shore A | 30 – 90 Shore A |
| Recommended Applications | Food, pharma, electrical, extreme temp | Outdoor, automotive, weather‑stripping | General purpose, shock absorption |
* Silicone rubber offers the widest temperature range and best long‑term ageing resistance, making it the preferred choice for demanding sealing and gasketing applications.
Typical Applications & Industries
Food & Beverage Processing FDA‑compliant gaskets and seals for pasteurisers, filling machines, and conveyors – non‑toxic and easy to clean.
Pharmaceutical & Medical Biocompatible seals for drug manufacturing, sterilisation equipment, and medical devices – physiologically inert.
Electrical & Electronics Insulating sheets, gaskets, and spacers for control cabinets, transformers, and LED lighting – high dielectric strength.
Also explore our rubber sheet range for other elastomer options.
Automotive & Aerospace Seals, vibration mounts, and thermal barriers in engine compartments, HVAC systems, and interiors.
Industrial Gasketing & Sealing Replacement gaskets for flanges, manholes, and pressure vessels where temperature extremes or chemical exposure occur.
Marine & Outdoor Equipment Weather‑resistant seals for hatches, windows, and enclosures – excellent UV and salt‑water resistance.
Why Choose Kaxite for Silicone Rubber Sheets?
Over 30 Years of Rubber Compounding Expertise – Since 1990, Kaxite has developed a deep understanding of elastomer materials, enabling us to tailor silicone formulations for specific hardness, temperature, and chemical resistance requirements.
ISO 9001:2015 Certified Production – Our manufacturing facility operates under strict quality control, ensuring consistent thickness, hardness, and physical properties from batch to batch.
In‑House Slitting & Die‑Cutting – We offer custom cutting to size, saving you time and reducing waste. Our CNC and waterjet capabilities handle complex gasket shapes with precision.
Competitive Factory‑Direct Prices – As a China rubber sheet manufacturer, we supply directly to OEMs and distributors, offering bulk discounts without compromising quality.
Fast Quote & Technical Support – Our engineers are available to assist with material selection, hardness recommendations, and application troubleshooting – with a response time of under 2 business hours.
Global Logistics Network – We ship to over 40 countries, with flexible packaging and shipping options to meet your project deadlines and inventory needs.
Proven Reliability: Kaxite silicone rubber sheets are trusted by leading food processors, pharmaceutical companies, and electrical equipment manufacturers worldwide for their consistent quality and long service life.
Quality Assurance & Regulatory Compliance
Kaxite Sealing is an ISO 9001:2015 certified manufacturer. Our silicone rubber sheets are produced under controlled conditions from raw material mixing to calendering, curing, and final inspection. Each lot is tested for hardness, tensile strength, elongation, and compression set to ensure compliance with ASTM D2000 standards. We provide material test certificates with every shipment, and FDA‑compliant grades are available with full documentation.
- ISO 9001:2015
- FDA 21 CFR 177.2600 (on request)
- REACH & RoHS Compliant
- ASTM D2000 M2GE 607
- UL 94 V‑0 (flame retardant options)
Quality you can count on – our silicone rubber sheets are exported to over 40 countries, backed by responsive technical support and reliable delivery.
Custom Cutting & OEM Services – Free Sample Available
As a professional silicone rubber sheet manufacturer in China, we offer comprehensive customisation to meet your design and performance needs. Request a free sample or get a bulk quote today:
- Custom thicknesses (0.3 – 12 mm)
- Custom widths and lengths
- Die‑cut gaskets and washers (any shape)
- Custom colour matching
- Flame‑retardant or conductive grades
- Just‑in‑time delivery and inventory management
Get a free sample or request a tailored bulk quote – our team responds within 24 hours with competitive pricing and lead‑time estimates.
Frequently Asked Questions About Silicone Rubber Sheets
- Q: What is the continuous operating temperature range for silicone rubber?
- A: Standard silicone rubber (KXT B400MUQ) operates continuously from –85 °C to +215 °C. Special high‑temperature grades can withstand up to +315 °C intermittently. It maintains flexibility and resilience across this entire range, making it suitable for cryogenic and high‑heat applications.
- Q: Is silicone rubber suitable for food contact?
- A: Yes. We offer FDA‑compliant grades that meet 21 CFR 177.2600 for repeated food contact. These grades are odourless, tasteless, and non‑toxic, making them ideal for food processing, beverage filling, and pharmaceutical applications. A Certificate of Compliance is available upon request.
- Q: What hardness (Shore A) do you offer?
- A: We stock hardness grades from 40 to 80 Shore A, with 60 Shore A being the most common. Custom blends can be developed for special requirements. Please specify your hardness preference when ordering.
- Q: Can silicone rubber be used with steam?
- A: Silicone rubber has limited resistance to high‑pressure steam, particularly above 120 °C. Prolonged exposure to steam may cause degradation. If steam is a regular part of your process, we recommend considering EPDM or PTFE materials. Contact our technical team for guidance.
- Q: What thicknesses and widths are available?
- A: We offer thicknesses from 0.3 mm to 12 mm and widths up to 1.5 m in standard rolls or cut sheets. Custom slitting and die‑cutting are available for production runs. Contact us with your specific dimensions.
- Q: Do you provide free samples?
- A: Absolutely. We supply free sample sheets for testing, typically 200×200 mm or custom‑cut. Sample orders are processed within 3‑5 working days. Request your free sample today.
Partner with Kaxite Sealing – your trusted silicone rubber sheet manufacturer and supplier in China. With decades of elastomer expertise, advanced cutting capabilities, and a steadfast commitment to quality, we provide reliable sealing solutions for the most demanding food, pharmaceutical, electrical, and industrial applications. Request a free sample or get a tailored bulk quote today – our engineers respond within 24 hours.
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