17 Types of Silicone: Grades, Applications, and Test Data

Silicone comes in three broad families. RTV cures at room temperature and is used for sealants and mold-making. LSR (liquid silicone rubber) is injected under pressure for high-precision, high-volume parts. HCR (heat-cured rubber, also called HTV) is supplied as a solid gum and shaped by extrusion or compression molding. Dabojin manufactures LSR by injection molding (see our Liquid Silicone Injection Molding services) and produces the 17 HCR grades below in-house for extrusion and compression molding. Each grade is grouped by process below, with its Shore A hardness range, tensile and tear strength, and cure conditions. Silicone Material & Sourcing Center

Extrusion Grades (Platinum-Cured, by Clarity)

1. Platinum Extrusion General Silicone

Application:

For extruded products like LED silicone co-extrusion, sleeves, neon strips, tubes, and shaped strips.

Features:

Clear, resists yellowing, cures quickly. Surface smooth, bubble-free, cures at right time. Meets ROHS, REACH, FDA standards.

Testing:

Platinum curing agent A: 0.5%, B: 1%, at 135°C, 2min, 15Mpa.

Platinum Extrusion General Silicone Technical Data Sheet

2. High-Transparency Platinum Extrusion General Silicone

Application:

For high-demand extruded products like LED silicone co-extrusion, sleeves, neon strips, tubes, and shaped strips.

Features:

Clear, doesn't yellow, stays bright. Surface smooth, no bubbles, cures correctly. Passed ROHS, REACH, FDA tests.

Testing:

Platinum curing agent A: 0.5%, B: 1%, at 135°C for 2min, 15Mpa.

High-Transparency Platinum Extrusion General Silicone Technical Data Sheet

3. High-Transparency Platinum Extrusion Gas-Phase Silicone

Application:

Customized for clear, high-transparency extruded products like LED silicone sleeves, tubes, and strips.

Features:

Exceptionally clear, resists yellowing. Surface bright, no gel or bubbles, cures at the right time. Passed ROHS, REACH, FDA, LFBG tests.

Testing:

Platinum curing agent A: 0.5%, B: 1%, at 135°C for 2min, 15Mpa.

High-Transparency Platinum Extrusion Gas-Phase Silicone Technical Data Sheet

4. Platinum Extrusion Gas-Phase Silicone

Application:

Made for high-demand platinum silicone tubes, shaped strips, and other extruded products.

Features:

Resists yellowing, stays visually appealing. Surface bright, no gel or bubbles, stores well at room temperature, cures correctly. Passed ROHS, REACH, FDA, LFBG tests.

Testing:

Platinum curing agent A: 0.5%, B: 1%, at 135°C for 2min, 15Mpa.

Platinum Extrusion Gas-Phase Silicone Technical Data Sheet

General-Purpose Compression Molding Grades

5. General Compression Molding Silicone

Application:

For making common accessories, seals, standard-strength silicone products.

Features:

Great resilience, ensures strong processing performance.

Testing:

50% bisphenol A, added at 1.5%, tested at 175°C for 5min, 15Mpa.

General Compression Molding Silicone Technical Data Sheet

6. High-Strength Compression Molding Silicone

Application:

For making complex items like kitchenware, gifts, swimwear.

Features:

Fast curing, strong, superior processing.

Testing:

50% bisphenol A, 1.5% ratio, tested at 175°C for 5min, 15Mpa.

High-Strength Compression Molding Silicone Technical Data Sheet

7. General Purpose Gas-Phase Silicone

Application:

For making sheaths, kitchenware, wallets, watch straps, other common products.

Features:

Fast curing, strong, excellent processing.

Testing:

50% bisphenol A, 1.5% ratio, tested at 175°C for 5min, 15Mpa.

General Purpose Gas-Phase Silicone Technical Data Sheet

8. High Rebound General Silicone

Application:

For making seals, gaskets, special parts with high rebound needs.

Features:

High rebound, excellent processing.

Testing:

50% bisphenol A, 1.5% ratio, tested at 175°C for 5min, 15Mpa.

High Rebound General Silicone Technical Data Sheet

Specialty Performance Grades

9. High Tear-Resistant Gas-Phase Silicone

Application:

Suitable for making high-strength products like automotive accessories and special parts.

Features:

Excellent rebound, outstanding processing performance.

Testing:

Contains 50% bisphenol A, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

High Tear-Resistant Gas-Phase Silicone Technical Data Sheet

10. High Rebound Gas-Phase Silicone

Application:

Suitable for making high-end sealing elements, dining mats, sports seat cushions, and other high-rebound products.

Features:

High rebound, outstanding processing performance.

Testing:

Contains 50% bisphenol A, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

High Rebound Gas-Phase Silicone Technical Data Sheet

11. Special Hardness Silicone (High Hardness Silicone)

Application:

Suitable for making high-hardness products like foot pads, kitchen utensils, sealing elements, and miscellaneous parts.

Features:

High hardness, good strength.

Testing:

Contains 50% bisphenol A, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

Special Hardness Silicone Technical Data Sheet

12. High-Transparency Gas-Phase Silicone

Application:

Suitable for making pacifiers, highly transparent miscellaneous parts, and transparent medical and sanitary products.

Features:

High transparency, high strength, excellent processing performance.

Testing:

Contains 50% bisphenol A, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

High-Transparency Gas-Phase Silicone Technical Data Sheet

13. Special Hardness Silicone (Low Hardness Silicone)

Application:

Suitable for making cling film, anti-slip mats, shoe insoles, and similar products.

Features:

High strength, low hardness, good flexibility.

Testing:

Contains 50% silicone, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

Special Hardness Silicone Technical Data Sheet

14. Flame Retardant Silicone

Application:

Suitable for making various flame retardant products.

Features:

High strength, halogen-free flame retardant, excellent flame retardant performance.

Testing:

Contains 50% silicone, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

Flame Retardant Silicone Technical Data Sheet

15. Oil-Seeping Silicone

Application:

Suitable for making automotive accessories, connectors, and similar products.

Features:

High strength, excellent oil-seeping properties, oil content exceeds 8%.

Testing:

Contains 50% silicone, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

Oil-Seeping Silicone Technical Data Sheet

16. Anti-Static Gas-Phase Silicone

Application:

Suitable for making anti-static electronic product protective sleeves and rubber rollers.

Features:

High strength, odorless, excellent anti-static effect.

Testing:

Contains 50% silicone, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

Anti-Static Gas-Phase Silicone Technical Data Sheet

17. Heat-Resistant Silicone

Application:

Suitable for making automotive parts, heat-resistant rubber rollers, and heat-resistant seals.

Features:

Excellent heat resistance and mechanical strength.

Testing:

Contains 50% silicone, added at a ratio of 1.5%, subjected to 175°C for 5min at 15Mpa.

Heat-Resistant Silicone Technical Data Sheet at 300°C

Heat-Resistant Silicone Technical Data Sheet at 350°C

Not sure which grade fits your part? Send your spec and we'll recommend a grade