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Foam Silicone

Your Professional Foam Silicone Supplier!

 

 

Sanpu silicone Co. Ltd is the leading silicone sheet manufacturer in China,specializing in a full range of silicone and silicone foam products for 15 years. 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.

 

 
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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

 

 

Mechanical Properties

Metric

English

Hardness, Shore A

3.0 - 62

3.0 - 62

Hardness, Shore OO

40 - 70

40 - 70

Tensile Strength, Ultimate

0.0552 - 2.80 MPa

8.00 - 406 psi

Tensile Strength, Yield

0.172 - 1.24 MPa

25.0 - 180 psi

Elongation at Break

49 - 300 %

49 - 300 %

Compressive Yield Strength

0.00800 - 0.170 MPa

1.16 - 24.7 psi

Compression Set

0.00 - 80 %

0.00 - 80 %

 

Our Best-Selling Foam Silicone Types

Silicone Sponge

Silicone sponge is a versatile and durable material that can be used in a wide range of applications. Designed for exceptionally reliable sealing, cushioning and vibration insulation, silicone sponge offers impressive heat resistance and can withstand extremely high and low temperatures without degrading.

Silicone Foam

Silicone foam is a synthetic rubber product used in gasketing, sheets and firestops. It is available in solid, cured form as well as in individual liquid components for field installations.

High Density Silicone Sponge

Our high recovery silicone sponge is a medium density material that is able to quickly return to its original shape. This material is available in a wide variety of thicknesses from 1.6mm up to 12.7mm as standard.

 

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Advantages of Foam Silicone

● Foam silicone is available in both open-cell or closed-cell foam structure.
● Open cell foam structure allows high absorption of water, moisture and dust.
● Closed cell foam structure doesn't accommodate for the absorption of water, moisture or dust – making it ideal in sealing applications where water and dust need to be kept out. This type is inherently hydrophobic (repels water).
● Low flammability – Enabling uses in anti-fire measures and glazing seals.
● Low density – Reducing overall weight and improving dimensional stability.
● Excellent compression set resistance – rebound to original thickness quickly.
● Mechanical properties remain virtually constant between -60°C to 230°C.
● Retain full flexibility over a large temperature range
● Good sound and heat insulation.
● Highly resistant to harsh chemicals and UV light – leading to excellent weathering properties.
● No release of toxic chemicals during thermal decomposition
● Great dielectric properties –Enabling uses in electrical insulation or conduction.

 

 
The Foam Silicone Formation Process
 
01/

Extrusion or Molding
Once the liquid silicone and additives are thoroughly mixed, the mixture is ready to be shaped into the desired foam structure. This is where extrusion or molding comes into play.

02/

Mixing and Preparation
The first step in foam silicone production involves mixing liquid silicone rubber with various additives, including foaming agents, catalysts, and fillers.

03/

Expansion and Curing
Once the silicone mixture is shaped, the next step is the expansion phase, where the foaming agent activates. When heat is applied, the foaming agents release gas, causing the silicone to expand and form a foam. This gas creates bubbles that give the foam its cellular structure.

04/

Cooling and Cutting
After the curing process is complete, the foam silicone is allowed to cool to room temperature. Once cooled, it is carefully removed from the mold or extrusion line. The foam may still be in bulk form and needs to be shaped to fit the specific requirements of its application.

 

 

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 Foam Manufacturers

 

Foam Silicone Physical Properties

 

Closed Cell Foam Material

1

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Excellent performance at extreme temperatures

2

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Superior fire resistance

3

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Low compression set

4

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UV and ozone resistance

5

 

Common Foam Silicone Applications

 Die and CNC cut parts
 Custom fabricated products
 Gasket tapes

Gaskets

Thermal barriers

Seals

Noise and vibration dampeners

Fire walls

Insulation

Thermal barriers

Lightweight potting and encapsulation

Press pads

EV battery packs

Fire blocks

PCB staking

 

Cheap Pinhole Silicone Foam

 

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 is the use of foam silicone?

A: Foam silicone is commonly used in cushioning, padding, and vibration dampening applications. Silicone sponge is often utilised for sealing, gap filling, insulation, gaskets, thermal management applications and other applications requiring a reliable barrier against external elements.

Q: Is foam silicone a rubber?

A: Foam silicone is a synthetic rubber product used in gasketing, sheets and firestops. It is available in solid, cured form as well as in individual liquid components for field installations. Foam fixer pump used to draw silicone foam individual components, then mix them at the nozzle and dispense into desired location.

Q: Is foam silicone heat resistant?

A: Operating temperature: While all these materials have a wide operating range, silicone foam can resist temperatures of -70°F to 400°F, silicone sponge has the best embrittlement performance resisting temperatures between 100°F - 500°F, and solid silicone rubber has the best high temperature performance withstanding

Q: Is foam silicone waterproof?

A: Foam silicone is a flexible, light density material with a smooth skin on both sides. The term closed cell means that the foam has a cellular structure within the material where the cells are completely enclosed and non-interconnecting. The foam is therefore impervious to the transmission of water or moisture.

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