Silicone rubber

Injection molded silicone rubber is favored by plastic injection molding manufacturers due to its exceptional temperature resistance, flexibility, and biocompatibility, making it suitable for diverse industries and applications.

Silicone rubber Injection Molding Manufacturer

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Overview of Injection Molded Silicone rubber

Injection-molded silicone rubber is a flexible, heat-resistant elastomer material created through a molding process. It offers excellent temperature resistance, durability, and biocompatibility, making it ideal for a wide range of applications, including automotive, medical, and consumer products.

Common grades of injection-molded silicone rubber used for injection molding parts include:

  • High-Temperature Silicone Rubber

  • Medical-Grade Silicone Rubber

  • Food-Grade Silicone Rubber

  • Conductive Silicone Rubber

  • Flame-Retardant Silicone Rubber

Injection Molded Silicone Rubber Grades Comparison

When flexibility, heat resistance, and biocompatibility are essential, silicone rubber is chosen for injection-molded parts. To select the right grade, consider factors like temperature range, biocompatibility (for medical applications), food-grade requirements (for culinary tools), electrical conductivity (for electronics), and flame resistance (for fire safety equipment).

High-temperature silicone suits extreme heat, while medical-grade silicone meets healthcare standards. Food-grade silicone is safe for culinary applications, conductive silicone works for electronics, and flame-retardant silicone enhances safety in fire-prone environments.

 Key Features And Applications

Silicone Rubber Grade

Key Properties

Common Applications

High-Temperature Silicone

- Excellent heat resistance (up to 300°C)

Automotive gaskets, oven seals, aerospace

Medical-Grade Silicone

- Biocompatibility

Medical devices, implants, healthcare

Food-Grade Silicone

- Food-safe certification (FDA, LFGB)

Baking molds, kitchen utensils, food seals

Conductive Silicone

- Electrical conductivity

Electronics, EMI shielding, connectors

Flame-Retardant Silicone

- Flame resistance

Fire safety equipment, electrical enclosures

Physical And Mechanical Properties of Injection Molded Silicone rubber 

Property

Density (g/cm³)

Tensile Strength (MPa)

Tensile Elongation (%)

Flexural Modulus (MPa)

Flexural Strength (MPa)

Izod Impact Strength (J/m)

Heat Deflection Temp. (°C)

Shrinkage (%)

Hardness (HRB)

High-Temperature Silicone

1.2

8

300

500

9

30

250

2.5

50

Medical-Grade Silicone

1.1

7

400

300

8

40

200

2.0

45

Food-Grade Silicone

1.1

6

350

250

7

35

180

1.8

40

Conductive Silicone

1.3

9

320

600

10

50

280

2.8

55

Flame-Retardant Silicone

1.2

8

280

450

9

25

240

2.3

48

Silicone Rubber Grades Injection Molding Properties

High-Temperature Silicone Rubber

Applications: High-temperature silicone Rubber is chosen for applications requiring exceptional heat resistance, such as automotive gaskets, oven seals, and aerospace components. It thrives in environments with temperatures up to 300°C.

Reasons for Popularity: Its popularity arises from its ability to maintain its properties at high temperatures, making it a reliable choice for applications subjected to extreme heat, where other materials might degrade.

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Medical-Grade Silicone Rubber

Applications: Medical-grade silicone Rubber is crucial in the healthcare industry due to its biocompatibility. It is used in medical devices, implants, and various healthcare applications.

Reasons for Popularity: Its popularity is attributed to its biocompatibility, ensuring it meets stringent medical standards. It's safe for use in contact with the human body, making it ideal for medical and healthcare applications.

Food-Grade Silicone Rubber

Applications: Food-Grade Silicone Rubber is essential for culinary applications where safety and non-toxicity are paramount. It is used in baking molds, kitchen utensils, and food seals.

Reasons for Popularity: Its popularity is rooted in its food-safe certifications, such as FDA and LFGB, ensuring it won't contaminate food. It offers a reliable and safe choice for kitchen and food-related products.

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conductive-silicone-rubber-injection-molded-parts

Conductive Silicone Rubber

Applications: Conductive Silicone Rubber is chosen for applications demanding electrical conductivity, such as in electronics and EMI shielding. It's used in connectors, electrical components, and as an EMI gasket.

Reasons for Popularity: Its popularity arises from its ability to conduct electricity while maintaining silicone's other beneficial properties. It's crucial for ensuring electrical connectivity and electromagnetic interference protection.

Flame-Retardant Silicone Rubber

Applications: Flame-retardant silicone Rubber is vital for applications where fire safety is a concern, such as fire safety equipment and electrical enclosures.

Reasons for Popularity: Its popularity is driven by its flame resistance, low smoke emissions, and electrical insulating properties. Flame-retardant silicone Rubber ensures safety in environments where fire risks exist.

silicone-rubber-injection-molded-electrical-enclosures

What We Can Do In Plastic Injection Molding?

We can provide a one-stop service from prototyping to mass production for your custom injection molded parts. this includes

1. Consultive Design Service

2. Mechanical Design Service

3. Rapid Prototyping Service

4. On-Demand Manufacturing Service

5. Simple Assembly Service

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