21 Questions About Silicone Rubber Sheets

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21 Questions About Silicone Rubber Sheets

21 Questions About Silicone Rubber Sheets

1. What is a silicone rubber sheet?
A silicone rubber sheet is made from silicone rubber, a material with higher purity compared to other types of rubber. It is highly flexible and notable for its wide range of temperature tolerance, capable of withstanding both heat and cold. The surface of silicone rubber sheets is smooth and easy to clean, resistant to fungi and bacteria. It is also resistant to plant oils, animal oils, flame, and possesses high electrical insulation. Chemically inert, it withstands UV, ozone, and excellent environmental conditions, resulting in a longer lifespan compared to other rubber sheets.
Silicone rubber sheets are popularly used in various industries, such as automotive, medical, food, and electronics manufacturing. They can be produced in various thicknesses and sizes (Thickness: 0.4-25 mm / Width 1-2 M) and can be modified with colors or other materials to enhance their properties. Examples of specialized silicone sheets include Conductive Silicone Sheet, Flame Retardant Silicone Sheet, Glass Reinforced Silicone Sheet, Extreme High Heat Resistant Silicone Sheet, Metal Detectable Silicone Sheet, and Silicone Vacuum Sheet.

 

2. What are the special properties of silicone rubber sheets?
Silicone rubber sheets have several unique properties that make them popular in various industries. These properties include :

  • Wide Temperature Range : They can withstand high temperatures up to +270°C and low temperatures down to -70°C.
  • High Flexibility : Silicone rubber sheets are highly flexible and soft, making them suitable for applications requiring elasticity.
  • Chemical Inertness : They are resistant to diluted chemicals, plant oils, and animal oils.
  • Environmental Resistance : Silicone rubber sheets are highly resistant to sunlight, heat, UV, and ozone, making them suitable for both indoor and outdoor use.
  • Electrical Insulation : Silicone sheets are excellent electrical insulators, making them ideal for use in the electronics industry.
  • Flame Resistance : They are more resistant to ignition compared to other types of rubber sheets.
  • Resistance to Fungi and Bacteria : Their resistance to fungal and bacterial growth makes them suitable for high-cleanliness applications.
  • Easy to Clean : The smooth surface of silicone rubber sheets makes them easy to clean.

 

3. How many types of silicone rubber sheets are there?
There are three common types of silicone rubber sheets available :

  • Transparent Silicone Rubber Sheet (Platinum Cured)
  • Translucent White Silicone Rubber Sheet
  • Firebrick Silicone Rubber Sheet
In addition, there are special grades of silicone rubber sheets designed for specific applications in various industries, such as :
  • Conductive Silicone Sheet
  • Flame Retardant Silicone Sheet
  • Glass Reinforced Silicone Sheet
  • Extreme High Heat Resistant Silicone Sheet
  • Metal Detectable Silicone Sheet
  • Silicone Vacuum Sheet
  • Fluorosilicone Sheet
  • Super Clear Silicone Sheet

 

4. What is the maximum temperature that silicone rubber sheets can withstand?
Silicone rubber sheets are notable for their high-temperature resistance, which varies based on the grade of the silicone rubber sheet :
  • Translucent / Transparent Silicone Rubber Sheet (QS) : Can withstand temperatures up to +220°C
  • Firebrick Silicone Rubber Sheet (QM) : Can withstand temperatures up to +270°C
  • Redbrick Red Silicone Rubber Sheet (QH) : Can withstand temperatures up to +315°C

 

5. In which industries is silicone rubber sheet used?
Silicone rubber sheets, known for their outstanding properties in terms of temperature resistance, purity, environmental tolerance, electrical insulation, and flame resistance, are widely used in various industries. These include :
  • Food, pharmaceutical and beverage production industries
  • Medical equipment manufacturing industry
  • Automotive industry
  • Electrical appliance manufacturing industry Electronics
  • HVAC system
  • Construction industry
  • Etc.

 

6. What manufacturing process is used to produce silicone rubber sheets?
Silicone rubber sheets are produced using the Calendering Process. This method allows the production of silicone rubber sheets with varying thicknesses, ranging from 0.4 to 25 mm. Additionally, the vulcanization process is crucial in their production, which includes both Peroxide Cure and Platinum Cure methods. These curing processes significantly affect the purity of the silicone rubber sheets.

 

7. What is the standard thickness of silicone rubber sheets?
The commonly produced and distributed silicone rubber sheets have standard thicknesses as follows :

Thickness (mm)Width (Meter)Length/Roll (Meter)
0.51/1.210
11/1.210
21/1.210
31/1.210
41/1.210
51/1.210
61/1.210
81/1.210
101/1.210
121/1.25
151/1.25
201/1.23
251/1.23

Additionally, it is possible to custom manufacture silicone rubber sheets in various sizes according to specifications. The starting thickness is 0.4 mm, and the maximum width is up to 2 meters.

 

8. Can silicone rubber sheets be cut into various shapes?
Yes, silicone rubber sheets can be subjected to Die-Cutting to be cut into various shapes. This makes them highly suitable for applications such as seals gaskets, and tank covers for drinking water, among others.

 

9. Can silicone rubber sheets be glued?
As silicone rubber sheets have a much smoother surface compared to other types of rubber sheets, this poses a significant challenge in adhering tape or applying glue to them before installation. Conventional adhesives generally do not adhere well to silicone rubber. Only silicone-based adhesives can effectively bond to silicone rubber sheets or join them together.

 

10. Are silicone rubber sheets chemical resistant?
Silicone rubber sheets are chemically inert and can resist diluted chemicals. They can withstand substances such as :
  • Ammonia Gas
  • Ammonium Hydroxide (Aqueous)
  • Benzoic Acid (Aqueous)
  • Boric Acid (Aqueous)
  • Brake Fluids (Nonpetroleum)
  • Calcium Chloride (Aqueous)
  • Carbolic Acid
  • Citric Acid (Aqueous)
  • Dibutyl Phthalate
  • Diethylene Glycol
  • Ethanol
  • Ethyl Alcohol
  • Hydrogen Peroxide (10%)
  • Methyl Ether
  • Oleic Acid
  • Oxygen
However, it is not recommended to use with highly concentrated chemicals and petroleum oils.

 

11. Do silicone rubber sheets have electrical insulation properties?
Yes, silicone rubber sheets have excellent electrical insulation properties. They maintain their insulating capabilities effectively even at high temperatures, compared to other types of rubber sheets. This makes them highly suitable for applications where electrical insulation is crucial.

 

12. What is the hardness range of silicone rubber sheets?
Commonly produced and available silicone rubber sheets have a hardness of 60±5 Shore A. However, they can be manufactured with different hardness levels, such as 40, 50, 70, and 80 Shore A, depending on specific application requirements and types.

 

13. What are the standard colors of silicone rubber sheets?
The standard colors of silicone rubber sheets are as follows :
  • Transparent White Silicone Rubber Sheet (Transparent)
  • Translucent White Silicone Rubber Sheet (Translucent)
  • Firebrick Silicone Rubber Sheet (Firebrick)

 

14. How do the Transparent White, Translucent White, and Firebrick Silicone Rubber Sheets differ?
The Transparent White , Translucent White , and Firebrick Silicone Rubber Sheets differ not only in color but also in their heat resistance capabilities :
  • Transparent White and Translucent White Silicone Rubber Sheets : These can withstand maximum temperatures up to +220°C
  • Firebrick Silicone Rubber Sheets : Specifically for the HyperSheet brand, these can withstand higher temperatures, up to +270°C

 

15. How should silicone rubber sheets be stored?
Silicone rubber sheets should be stored in a clean area at room temperature. It is important to avoid exposure to oils, chemicals, sunlight, UV rays, ozone, and sharp objects. Do not fold the sheets or place heavy objects on them to prevent any damage or marking. Importantly, store the sheets in standard packaging to maintain their quality, prolong their lifespan, prevent color changes, and protect them from dust.

 

16. What factors cause silicone rubber sheets to deteriorate quickly?
Several factors can accelerate the deterioration of silicone rubber sheets, such as :
  • Using the sheets at temperatures higher than their specified limit.
  • Exposure to harsh, concentrated chemicals or petroleum oils.
  • Contact with sharp objects leading to cuts or tears in the silicone rubber sheets.
These conditions can significantly reduce the lifespan and effectiveness of silicone rubber sheets.

 

17. Are there any limitations or precautions to be aware of when using silicone rubber sheets?
Silicone rubber sheets have limitations regarding their use in environments with high concentrations of chemicals, steam, petroleum oils, or in applications involving scratching, contact with sharp objects, or abrasion. This is because silicone rubber sheets can tear easily and are not highly abrasion-resistant. To enhance the durability of silicone rubber sheets, it is recommended to choose options with a Tensile Strength of > 7 MPa or higher.

 

18. Are silicone rubber sheets durable against wear and tear?
Silicone rubber sheets exhibit low resistance to tensile forces, abrasion, and impact, resulting in lower durability against wear and tear. To obtain silicone rubber sheets with enhanced strength, it is recommended to choose sheets with a Tensile Strength of > 7 MPa or higher, or select specific grades that are more resistant to wear.

 

19. Can silicone rubber sheets withstand UV radiation?
Silicone rubber sheets have a relatively high resistance to degradation caused by UV radiation compared to other types of rubber sheets. This makes them popular for use in applications such as seals, gaskets, or pads that are exposed to UV rays.

 

20. What is the approximate price of silicone rubber sheets?
The price of silicone rubber sheets depends on the quality and grade of the rubber (such as General Purpose, Food Grade (FDA), High Heat Grade, Platinum Grade, etc.), Thickness, Width, and the quantity ordered. You can inquire about the prices from brands like HyperSheet through their LINE Official Account : @PTIRUBBER

 

21. Where should one contact to order silicone rubber sheets?
To order high-quality, standard-compliant silicone rubber sheets with High Tensile Strength > 7MPa and certifications like FDA / REACH / RoHS, you can inquire with the brand HyperSheet through their LINE Official Account : @PTIRUBBER You can also contact them via email at info : @ptigroups.com or by phone at +6622577154, Mobile/WhatsApp : +66863077319

 

 

These are just some of the frequently asked questions about silicone rubber sheets.

If you need more information, you can inquire with the brand HyperSheet through the following channels :
LINE Official Account : @PTIRUBBER  |  Email : info@ptigroups.com  |  Telephone : +6622577154  |  Mobile/WhatsApp : +66863077319

HyperSheet by Polytech Industry Company Limited
Has been providing manufacturing and distribution services for industrial rubber sheet products for over 18 years

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