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Silicone Rubber

Your Professional Silicone Rubber Supplier!

 

 

Sanpu Silicone Co., Ltd. is a leading manufacturer of silicone sheets in China. We offer all kinds categories of silicone, including: Silicone Sponge Sheets, Silicone Foam Sheet, Silicone Sponge Extrusion, Silicone Solid Sheet, Silicone Solid Extrusion, Silicone Tube.

 

 
First 123 Last
 
Why Choose Us

Patent Certificate

We have obtained ROHS certification (for closed-cell silicone foam), V-0 certification, FDA certification, ROHS certification (for open-cell silicone sponge), and REACH certification.

Wide Applications

Our products have been widely used in a variety of industries, including electronics, automotive manufacturing, medical devices, aerospace, and architectural decoration, demonstrating excellent applicability and compatibility.

Advanced Equipment

We are equipped with a comprehensive suite of advanced production equipment, including fully automated silicone compounding lines, precision injection molding equipment, high-precision extrusion systems, and advanced online testing instruments. This ensures complete automation and control of the entire process, from raw material processing to finished product formation.

Quality Control

The high-performance silicone materials we produce adhere strictly to the ISO 9001 international quality management system standards and relevant industry regulations. Every step, from raw material procurement to finished product delivery, undergoes rigorous quality control.

 

 

Specification

 

 

Number

Test Items

Unit

Test Result

1

Tensile strength

Mpa

7.5

2

Elongation

%

350

3

Hardness

Shore A

60±5

4

Temperature rate

℃

-60-220

5

Density/Gravity

g/cm3

1.25

 

Advantages of Silicone Rubber
Silicone Rubber Foam Sheets

Heat Resistance:

 

 

Silicone Rubber is a high heat & temperature resistance product. Some of its compounds are able to withstand up to 305 °C temperatures, it can extend to low temperatures too, which means this synthetic rubber can maintain its flexibility even at -100°C.

Environmental Resistance:

 

It exhibits a high level of environmental factors resistance, including UV radiation, open flames, extreme temperatures, and corrosive chemicals.

High-Performing Rubber:

 

It's known for its very durability, good mechanical properties, suitability and flexibility in low compression sets of extreme heat or cold. And extremely reliable and trusted to keep up performance for a long time.

Types of Silicone Rubber

 

 

Cellular Silicone Foams 
Cellular silicone foams are certified for flame resistance and temperatures between -65°F to +400°F. They offer a wide compression force range and low compression set under high temperatures. This makes them ideal for sealing, cushioning, vibration management, and insulation applications.


Specialty Cellular Foams 
Specialty cellular foams are specifically designed to be used with high performance substrates. They are capable of heat deflection and can be used in direct contact with a heat source, making them the ideal choice for thermal insulation and other applications where materials require flame retardant capabilities.


Sponge Silicones 
Sponge silicones are general purpose, durable foams that are used in rugged industrial environments.


Solid Silicones 
Solid silicone foams make great gaskets for high temperature and high-pressure applications. They come in multiple thicknesses and durometers (range of 10 to 70) and are electrically conductive. This, combined with their dimensional stability and tear strength, makes them ideal for applications that involve sound reduction and absorption.

 

 
Silicone Rubber Manufacturing Process
 
01/

Milling
The silicone compound is mixed in an open mill with the catalyst, pigment and any additives required to give it the desired performance characteristics.

02/

Extrusion
The silicone is fed through a die to form the required shape using an extruder. The shaped material then passes on a conveyor belt through a hot air oven to cure the material. During this stage, regular checks are made to ensure the dimensional accuracy of the being made.

03/

Post Curing
After extrusion, the cured parts are then post-cured in an oven for 8 hours at 200°C.

04/

QA
All items are subject to a final round of QA, where the materials, colours and dimensions are checked before being signed off.

 

 

Customized Service

1. We accept customization of various product attributes, including color, size, structure, surface finish, logo, adhesive type, and other specifications.
2. We can provide product design files in the following formats: 3D drawings in STP or IGS format, and 2D drawings in CAD or PDF format.
3. Customers can obtain a detailed quotation upon request by submitting their specific requirements.

Silicone Rubber Sponge Sheet

 

Application Examples of Silicone Rubber
 

Automotive Industry
Silicone rubber is widely utilized in the automobile sector for a variety of seals, gaskets, and hoses. Silicone rubber works well in engine and exhaust systems because of its strong temperature and chemical resistance. Silicone rubber is utilized in car interior elements such as buttons, sealing strips, and anti-slip mats to provide a nice feel and durability.

 

Medical Industry
Silicone rubber is used in a variety of applications in the medical sector, including medical equipment and implants. Because of its biocompatibility, silicone rubber is utilized to make catheters, surgical tool handles, and prosthetic organs. Silicone rubber's excellent temperature tolerance makes it ideal for high-temperature sterilizing medical situations, ensuring the cleanliness and sterility of equipment and instruments.

 

Food Processing
Silicone rubber is used in the food processing sector to make seals and conveyor belts. Silicone rubber's non-toxicity and heat tolerance allow it to keep its physical qualities in high-temperature food processing applications while preventing contamination. Silicone rubber is utilized to produce food molds, and its high temperature resistance and non-stick qualities make it an exceptional choice for baking molds.

 

Electronic and electrical
Silicone rubber is used in the electronics and electrical industries for cable insulation, connection seals, and high-temperature electrical components. Its strong electrical insulation and heat resistance allow it to function effectively in high-pressure, high-temperature, and humid situations, assuring the safety and dependability of electronic equipment.

 

Silicone Rubber Sheet

 

Ordering Process

1. Consultation and demand analysis
2. Product selection and confirmation
3. Order placement and order review
4. Shipping and logistics tracking

 

 

Packaging and Shipping

 

 

Packaging

Wooden box, PE film

Transportation methods

Road transport, rail transport, sea transport, air transport

 

Our Certificate
 
 
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FAQ

 

 

Q: What are the advantages of silicone rubber?

A: In addition to its temperature resistance and flexibility, silicone rubber is also known for its excellent electrical insulation properties. It has a high dielectric strength, meaning it can withstand high voltages without allowing electrical current to pass through.

Q: How long does silicone rubber last?

A: As a general guideline, silicone tends to have a long shelf-life of around 20 years. However, the curing process for platinum-cured and peroxide-cured silicone can extend the life, with some silicone rubber profiles lasting upwards of 45 years.

Q: How durable is silicone rubber?

A: Additionally, due to its low temperature resistance, solid silicone is able to retain its high tensile strength in low temperatures without becoming brittle and cracking. Solid silicone rubber is a highly durable and long-lasting material, making it ideal for use in indoor and outdoor industrial settings.

We're professional silicone rubber manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy bulk discount silicone rubber from our factory. For price consultation, contact us.