Why Choose Silicone Rubber? | Properties & Industrial Applications
Author: Site Editor Publish Time: 2016-08-31 Origin: Site
Advantages of silicone rubber products
Silicone rubber offers exceptional temperature resistance, chemical inertness, and biocompatibility that few other elastomers can match. Guangdong Anlin Technology provides premium silicone rubber materials and custom molding services for medical, food-grade, and high-temperature silicone application examples.
What Makes Silicone Rubber Unique?
Silicone rubber is a synthetic elastomer with a silicon-oxygen (Si-O) backbone instead of the carbon-carbon backbone found in organic rubbers. This molecular difference gives silicone its extraordinary properties:
- Extreme Temperature Range – Performs from -80F to +450F (-62C to 232C) continuously
- Chemical Inertness – Resists oxidation, ozone, and many chemicals
- Biocompatibility – Available in FDA, USP Class VI, and ISO 10993 compliant grades
- Electrical Insulation – Excellent dielectric properties for electronic applications
- Color Flexibility – Easily pigmented to any color without affecting properties
Silicone Rubber Material Properties
Please review the table below for detailed material specifications:
| Durometer | Tensile Strength | Elongation | Temperature Range | Color | Finish | Available Thicknesses |
|---|---|---|---|---|---|---|
| 50 80 |
750 PSI 700 PSI |
300% 150% |
-80F to +450F -80F to +450F |
Red/Orange Red/Orange |
Smooth Smooth |
1/16" – 1/2" 1/16" – 1/2" |
Types of Silicone Rubber
High Consistency Rubber (HCR)
Solid silicone rubber supplied in sheets or blocks. HCR requires compression or transfer molding and is ideal for larger, thicker parts. Available in 30 to 80 Shore A durometer.
Liquid Silicone Rubber (LSR)
Two-part liquid system designed for injection molding. LSR offers faster cycle times, tighter tolerances, and is perfect for small, intricate parts. Available in 10 to 70 Shore A durometer.
Fluorosilicone (FVMQ)
Combines silicone temperature resistance with improved fuel and oil resistance. Ideal for aerospace and automotive fuel system components where both temperature and chemical resistance are required.
Silicone vs. Other Rubber Materials
| Property | Silicone | EPDM | NBR | FKM |
|---|---|---|---|---|
| Temp Range | -80F to +450F | -60F to +300F | -30F to +250F | -15F to +450F |
| Oil Resistance | Fair | Poor | Excellent | Excellent |
| Weather Resistance | Excellent | Excellent | Fair | Excellent |
| Biocompatibility | Excellent | Fair | Poor | Good |
| Cost | Medium-High | Low | Low | High |
| Compression Set | Good | Good | Good | Excellent |
Applications Served
Silicone rubber's versatility makes it the material of choice across many industries:
- Automotive – Gaskets, seals, coolant hoses, ignition components
- Aerospace – Door and window seals, vibration dampers, thermal insulation
- Food and Beverage – FDA-compliant gaskets, baking molds, dispensing valves
- Medical and Healthcare – Biocompatible seals, surgical components, drug delivery parts
- Electronics – Key pads, connectors, thermal pads, insulating boots
- Consumer Products – Kitchen tools, baby products, wearable devices
Silicone Rubber from Anlintech
As an ISO 9001 certified manufacturer, Anlintech provides custom silicone rubber components tailored to your exact specifications. Our capabilities include:
- Compression molding for HCR silicone parts
- Injection molding for LSR precision components
- Extrusion for silicone profiles, tubes, and cords
- CNC cutting for silicone sheets and gaskets
- Custom compounding for specialized hardness and color requirements
Ready to get started? Request a Quote
