Your Professional Silicone Rubber Manufacturer
flexmer is a trusted manufacturer and supplier of premium silicone rubber products.
High-Quality Silicone Rubber
We use high-grade silicone materials to manufacture products that offer excellent performance under extreme conditions. Our silicone rubber is known for its superior resistance to heat, cold, and UV, ensuring longevity and reliability in diverse applications.
Professional Team
Our team of skilled engineers, technicians, and customer support professionals ensures that every project is completed to the highest standards. With extensive expertise in silicone rubber manufacturing, we are committed to delivering the best results for your unique needs.
Competitive Price
flexmer offers competitive pricing for our silicone rubber products without compromising on quality. Our efficient manufacturing processes and long-term supplier relationships allow us to deliver exceptional value while maintaining superior standards.
High-Quality Customized Services
flexmer offers custom solutions tailored to your specific requirements. Whether you need specialized silicone rubber compounds, custom shapes, or private-label products, we provide comprehensive ODM and OEM services to bring your product ideas to life.
Long Warranty
We stand behind the quality of our silicone rubber products, offering long warranties for your peace of mind. You can trust flexmer to deliver products that will perform reliably over time.
Global Shipping
We have extensive experience in global shipping, ensuring that our silicone rubber products reach you quickly and safely, regardless of your location. Whether you are in the Americas, Europe, or Asia, we have the logistics network to support your needs.
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Braided Silicone PipeHigh Temperature Resistance Flexible Braided Silicone Pipe Reinforced Hose Heating Tube -
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High Temperature Resistant Silicone Seal StripCustomizable High Temperature Resistant Silicone Seal Strip for Various Applications -
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Silicone Rubber Non Slip PadNon Slip Food Grade Silicone Round Heat Resistant Eco-Friendly Drinks Coasters Anti-Slip Cup Table Pads Desk Mat -
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Introduction to Silicone Rubber
Silicone rubber is a highly versatile, synthetic elastomer renowned for its exceptional thermal stability, chemical resistance, and flexibility. Widely used in industrial, automotive, medical, and consumer applications, silicone rubber combines excellent elasticity with durability, making it suitable for both high-temperature and low-temperature environments.
At Jinjiang Yunli Technology Co., Ltd., we specialize in producing high-quality silicone sheets and silicone extrusions. Leveraging over a decade of manufacturing experience, we offer customized solutions to meet stringent performance requirements across multiple industries.
Features of Silicone Rubber
Thermal and Temperature Resistance
Continuous use: -60°C to 230°C, short-term up to 300°C.
Retains flexibility at low temperatures, preventing cracking or hardening.
Resistant to heat aging, maintaining physical and mechanical properties over prolonged exposure.
Mechanical Properties
Tensile Strength: 6–12 MPa, depending on hardness and formulation.
Elongation at Break: 250–700%, providing exceptional flexibility.
Tear Strength: 15–40 kN/m, ensuring durability in dynamic applications.
Compression Set (ASTM D395): ≤25%, minimizing deformation under load.
Chemical and Environmental Resistance
Excellent resistance to ozone, UV, oxidation, and weathering.
Resistant to many chemicals, including dilute acids, alkalis, and alcohols.
Non-flammable, self-extinguishing in most grades.
Customization and Flexibility
Sheet thickness: 0.5mm to 25mm (customizable).
Extrusion profiles: Seals, gaskets, tubing, O-rings, and complex shapes.
Color options: Standard (red, black, white, transparent) or custom colors.
FDA, NSF, or medical-grade formulations available upon request.
Applications of Silicone Rubber
Industrial Applications
Machinery gaskets, seals, and vibration dampers
Automotive Applications
Weatherstrips for doors, windows, and trunks
Medical and Food Applications
FDA and NSF-approved tubing and sheets
Electrical and Electronics Applications
Insulating sheets for electronic components
Key Advantages of Silicone Rubber
Operating temperature range: -60°C to +230°C, with some high-temperature grades up to 300°C.
Exceptional resistance to UV, ozone, and weathering, ensuring long-term outdoor performance.
Non-toxic, FDA-compliant grades suitable for food, beverage, and medical applications.
High dielectric strength for electrical insulation applications.
Flexible hardness range: Shore A 10–80 for sheets and extrusions.
Silicone rubber can be manufactured in various forms: sheets, extrusions, tubes, profiles, gaskets, and molded parts, enabling engineers to select the perfect material solution for their project.
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Our Certificate
At Jinjiang Yunli Technology Co., Ltd., we are committed to maintaining the highest standards of quality, safety, and environmental responsibility. All our silicone rubber products — including silicone sheets and silicone extrusions — are produced under strict quality management systems and meet international compliance requirements.
Quality Management and Safety Certifications
ISO 9001:2015 Quality Management System
Ensures consistent product quality, process control, and continuous improvement in production.
RoHS Compliance (Restriction of Hazardous Substances)
Guarantees that our silicone materials are free from hazardous substances such as lead, cadmium, and mercury.
REACH Compliance (Registration, Evaluation, Authorization, and Restriction of Chemicals)
Confirms that our products are safe for human and environmental health under EU regulations.
FDA 21 CFR 177.2600 Certification
Applicable to our food-grade and medical-grade silicone, confirming suitability for food contact and healthcare applications.
UL 94 V-0 Flame Retardant Rating (Optional Grades)
Certain formulations meet UL standards for flame resistance, ideal for electrical and automotive uses.
Material Testing and Standards
Our products are tested in accordance with ASTM, ISO, and DIN standards to ensure reliability and performance in demanding environments:
ASTM D412 – Tensile Strength and Elongation at Break
ASTM D2240 – Hardness (Shore A)
ASTM D395 – Compression Set
ASTM D573 – Heat Aging Resistance
ASTM D2000 – Classification System for Rubber Products
ISO 3302-1 – Dimensional Tolerances for Extruded and Molded Rubber
We continuously strive to reduce our environmental impact through:
The use of eco-friendly, non-toxic raw materials
Waste reduction and energy-efficient production methods
Compliance with global environmental and safety directives
Manufacturing & Quality Assurance
At Jinjiang Yunli Technology Co., Ltd., we implement rigorous quality control and manufacturing protocols:
Raw Material Selection: Premium high-purity silicone polymers
Extrusion & Sheet Production: Advanced continuous extrusion and calendaring technology
Testing: ASTM and ISO standard testing for hardness, tensile strength, tear resistance, and thermal stability
Certifications: RoHS, FDA, ISO 9001 compliance
Frequently Asked Questions
Q1: What is the maximum operating temperature for your silicone rubber?
A1: Our standard silicone rubber operates continuously up to 230°C, with high-temperature grades capable of 300°C.
Q2: Are your silicone products FDA or food-grade compliant?
A2: Yes, we offer FDA, NSF, and medical-grade silicone formulations suitable for food and pharmaceutical applications.
Q3: Can I get custom extrusions or sheet thicknesses?
A3: Absolutely. We provide custom profiles, dimensions, and colors according to your requirements.
Q4: How do silicone sheets differ from silicone extrusions?
A4: Sheets are flat elastomers for gaskets, insulation, and protective surfaces, while extrusions are continuous profiles used for seals, tubes, and complex shapes.
Q5: What standards do your products comply with?
A5: Our silicone rubber adheres to ASTM D2000, ASTM D412, ASTM D395, ISO 3302, among other global standards.
Q6: How durable is silicone rubber in outdoor environments?
A6: Silicone rubber is highly resistant to UV, ozone, weathering, and temperature extremes, making it suitable for long-term outdoor applications.
Q7: Can silicone rubber be used for electrical insulation?
A7: Yes, silicone rubber provides high dielectric strength and volume resistivity, making it ideal for electronics and high-voltage applications.
Q8: What are the available hardness options?
A8: We offer a wide range of Shore A 10–80, suitable for soft gaskets to rigid extrusions.
We're professional silicone rubber manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy high-grade silicone rubber from our factory.
