How To Select The Silicone Rubber Row Material | Types Summary

How To Select The Silicone Rubber Row Material | Types Summary

Summary

There are many types of silicone rubber, conductive silicone rubber/liquid silicone rubber/food grade silicone rubber. Do you know their differences and uses? Today I have compiled the advantages and disadvantages of 8 types of silicone rubber raw materials on the market, follow me.

How To Select The Silicone Rubber Row Material | Types Summary

How To Select The Silicone Rubber Raw Material

siilicone rubebr raw material
Due to their unique chemical and physical properties, silicone materials are used in many industries. Silicone can be classified according to their characteristics, processing methods and application. Here is a brief introduction to the most common types of silicone rubber:

1.General Silicone Rubber

It is mainly used in everyday items, industrial components, electronic products etc. It is resistant to both high and low temperature, ageing, elasticity and electrical insulation.
Characteristics

Temperature range

-60degC up to +200degC

Hardness range

Typically, Shore A is 20-80. This range is suitable for products that have different hardness requirements.

Physical properties

Good flexibility and elasticity, resistant to UV and oxidation, ozone.

USE

Gaskets, seals, keyboard keys and household appliance parts.

2.Food-Grade Silicone Rubber

Applications: Used on products that are in direct contact with foods, such as seals, kitchenware, and baby products.
Characteristics

Nontoxic and Odorless

 Free from harmful substances and compliant with the food safety standards of FDA (U.S. Food and Drug Administration), and LFGB.

Temperature range

 -40degC up to +230degC. Suitable for use in microwaves and dishwashers.

Easy To Clean

Smooth Surface, Resistant to Oil Stains, Good Antibacterial Properties

USE

Silicone tablewares, baking molds for baby pacifiers and silicone food containers.

3.Medical-Grade Silicone Rubber

Applications: Used for medical supplies and devices, such as catheters.
Characteristics

Biocompatibility

Highly compatible with human tissues, minimizing the risk of rejection or allergic reactions.

High purity

No additives. Non-toxic and odorless. Meets strict medical industry standards.

Sterilization tolerance

Able to withstand different sterilization methods such as autoclaving, ethylene dioxide, and gamma rays.

USE

Medical catheters (catheters), surgical instrument handles (handles), implants, drug delivery system, etc.

4.Liquid Silicone Rubber (LSR)

Applications: Used for precision-molded parts such as automotive, medical, and electronic components.
Characteristics

Liquid form

 Silicone at room temperature is in a liquid state, which allows for easy injection molding and high fluidity.

High-Precision Molding

Ideal for complex-shaped molds, which result in products with high precision and consistency.

High transparency

This silicone is often transparent, making it ideal for semi-transparent or clear products.

Excellent temperature resistance

Wide temperature range, usually from -60degC up to +250degC.

USE

Baby products, medical devices, keyboards keys, automotive seals etc.

5.High-Tear Silicone Rubber

Applications:Used in products that require high strength and durability such as seals, protective parts for industrial applications, etc.
Characteristics

High Tear Resistant

 High tear resistance, resistant to wear and fatigue, ideal for applications that have dynamic loads.

Elastic retention

Maintains good shape and elasticity even under high pressure.

Weather Resistant

Excellent resistance to UV, Ozone and Weathering. Suitable for outdoor use.

USE

High-strength seals, industrial belts, automotive protective parts, etc.

6.High-Temperature Silicone Rubber

Applications: Ideal for high-temperature products, such as industrial oven gaskets and heat-resistant seals.
Characteristics

Excellent high-temperature resistance

Can use long-term for environments between 250degC and 300degC. Some specialized silicones can tolerate even higher temperatures.

Superior chemical resistance

 Resistant against oils, acids and alkalis.

USE

 High-temperature gaskets, heat-resistant tubing, industrial oven components, etc.

7.Conductive Silicone Rubber

Applications: Used for electronic products like buttons, conductive connectors and touch panels.
Characteristics

Conductivity

 This is achieved by adding conductive fillers to silicone (e.g. carbon black or silver powder).

Flexibility & Elasticity

Preserves the flexibility and elastic of silicone, while maintaining conductivity.

Stability

Conductivity stable, suitable for use over a long period of time in electronic components.

USE

Buttons for mobile phones, buttons on remote controls, conductive connectors etc.

8.Oil-Resistant Silicone Rubber

Applications:Used for products that come into contact oil, such as automotive gaskets and industrial machinery seals.
Characteristics

Oil Resistant

Excellent resistance against mineral, vegetable and synthetic oils. Suitable for applications that require oil contact.

Aging Resistant

Maintains performance without cracking or deteriorating over time.

USE

 Automotive engine seals, oil tank gaskets, industrial equipment protection parts, etc.
Each silicone type has different properties and applications. It is important to choose the correct silicone material for the project in order to ensure the durability and safety of the end product.