Technical Data
Reiss Silicone Rubber
Chemically, silicones are quite different from all other rubber-like materials. Organic polymers are made up of a "backbone" of carbon-to-carbon atoms. These linkages are easily deteriorated by elevated temperatures and the effects of silicon and oxygen atoms. Silicones have a silicon-oxygen linkage that is the same as that found in other high-temperature materials such as quartz, glass and sand. This explains silicone's superior high-temperature properties and their general inertness toward many deteriorating effects such as ozone, corona, weathering and radiation.
| Characteristics | ASTM D2000 SAE J200 | AMS 3304G | Actual Test Data |
|---|---|---|---|
| Physical Properties | |||
| Durometer, Shore A | 70 ± 5 | 70 ± 5 | 71 |
| Tensile, PSI, Minimum | 870 | 650 | 995 |
| Elongation % Maximum | 150 | 125 | 175 |
| Heat Age - 70 Hrs @ 125°C (257°F) | |||
| Durometer Change | ±10 | ±10 | +4 |
| Tensile Change, % | -25 | -25 | -14.3 |
| Elongation Change, % Maximum | -30 | -40 | -18.4 |
| Compression Set - 22 Hrs @ 175°C (347°F) | |||
| Original Deflection, % Maximum | 25 | 12.4 | |
| Compression Set - 70 Hrs @ 150°C (302°F) | |||
| Original Deflection, % Maximum | 25 | 19.4 | |
| ASTM #1 Oil - 70 Hrs @ 150°C (302°F) | |||
| Durometer Change | 0/-15 | +5/-15 | -7 |
| Tensile Change, % | -20 | -20 | -2.9 |
| Elongation Change, % Maximum | -20 | -15 | 0 |
| Volume Change, % | 0/+10 | +15 | +6.4 |
| Decomposition | -- | None | None |
| Surface Tackiness | -- | None | None |
| ASTM #1 Oil - 70 Hrs @ 150°C (302°F) | |||
| Durometer Change | -30 | -20 | |
| Volume Change, % Maximum | +60 | 35 | |
| Water Resistance - 70 Hrs @ 100°C (212°F) | |||
| Durometer Change | ±5 | -1 | |
| Volume Change, % | ±5 | +2.5 | |
| Low Temperature Brittleness (ASTM D2137-A) | |||
| 3 Minutes @ -55°C (-67°F) | Non-brittle | -- | Pass |
| 3 Minutes @ -65°C (-85°F) | -- | Non-brittle | Pass |
| Tear Resistance (Die B) | |||
| PPI | 51 | 25 | 107 |
Types of Silicone Rubber Available
Reiss has all the technical capability to supply a far wider variety of silicone rubber formulations than can be outlined on our "stock" item data sheets. Most materials are available in any color or can be color matched when necessary. We invite inquiries about the following types of silicone rubber:
| Type of Silicone Rubber | Description |
|---|---|
| General Purpose Rubber | A wide variety of hardnessess designed to fulfill the greatest number of applications. |
| High Performance Rubber | A unique combination of high tensile, high tear, and resilience for harsh environments that require tough rubber. |
| Extreme Low Temperature Rubber | Silicone available with a brittle point as low as -117°C (-178°F). |
| Fluorosilicone Rubber | General purpose physicals with outstanding resistance to fuels. Material cost is considerably higher than standard silicone. |
| Food Grade Rubber | Rubber to be used in contact with food. All components of this rubber have been selected to comply with the FDA 21 CFR 177.2600 regulation. |
| High Transparency Rubber | For applications requiring "see through." |
| Electrically Conductive Rubber | Compounds with general purpose physicals and with a volume resistivity of less than 10 ohm-cm are available. |
| Flame Retardant Rubber | Most silicone rubber types are available from Reiss Manufacturing, Inc. in flame retardant form. |
Reiss Silicones: Design and Processing Versatility
| Division | Procedures Performed |
|---|---|
| Molding | A broad range of shapes and sizes can be produced by injection, compression and transfer molding. |
| Extruding | Products such as tubing, rods, seals, and special shapes can be produced. We offer full design services to fulfill special sealing requirements. |
| Calendering | We can produce, in rolls, 12" wide solid silicone sheet as thin as .005" + .003"/-.001". |
| Sponge | We retain outstanding capabilities in silicone sponge. Extruded goods, flat sheets, 36" wide rolls, and molded shapes are available. |
| Fabrication | Die cutting, slitting, laminating, splicing, application of pressure sensitive adhesives and bonding of silicone rubber to various substrates (including fabrics and metals) are available. |
Silicone
- At a temperature of 90°C (194°F), silicones offer 40 years of life.
- Silicone rubber has a higher tensile strength than most organic elastomers at elevated temperatures.
- Young's Modulus, or ratio of stress to strain of low temperature, silicone rubber shows very little change down to -73°C (-100°F).
- -73° C (-100°F) to 260°C (500°F) range is normal and can go from -117°C (-178°F) to 316°C (600°F).
- When exposed to direct flame, silicone burns to a non-conducting ash.
- Silicone rubber, when used in outdoor applications, outperforms EPDM and other organic rubber materials.
- When properly fabricated it does not stain or corrode, it is odorless, tasteless and non-toxic.
Santoprene® Rubber
- Temperature range is from -40°C (-40°F) to 135°C (275°F) in continuous use.
- It has good sealing properties and compression set.
- It has oil and chemical resistance.
- It has good weather ability and is both ozone and UV resistant.
- You can choose a wide range of colors.
- Santoprene® is capable of complex profiles and is weldable.
- It has excellent compatibility with paint and is non-staining.
- There are a wide variety of grades available and it has the ability to be co-extruded with olefinics.
- Santoprene® is often used as a replacement for natural rubber (NR), polyisoprene (IR), styrene-B=butadiene rubber, lower-performing ethylene propylene diene (EPDM) and other TPEs.
- Santoprene® is used in applications that require moderate performance characteristics.
- The basic chemical structure is EPDM (partially cross-linked).
Fluorocarbon
Fluorocarbon is also known as Viton® and is a registered trademark of DuPont. Viton® is better than silicone in its resistance to a wide array of chemicals. It has a range in temperature of -29°C (-20°F) to 204°C (400°F), with intermittent exposure up to 316°C (600°F). This material is excellent against abrasion and oils and does well against ozone, weather and flame. However, it has limited use at low temperatures -20°C (-4°F) being the limit for flexibility. It is expensive and does not resist ketone solvents. Typically Viton® is used in applications requiring resistance to hostile fluids at high temperatures.
| Characteristics | ASTM D2000 SAE J200 | Actual Test Data |
|---|---|---|
| Physical Properties | ||
| Durometer, Shore A | 75 ± 5 | 77 |
| Tensile, PSI, Minimum | 1400 | 1744 |
| Elongation % Maximum | 125 | 229 |
| Specific Gravity | -- | 1.85 |
| Temperature Retraction, 10% Maximum | +5 | +1 |
| Air Age - 70 Hrs @ 270°C (518°F) | ||
| Durometer Change | 10/-5 | +2 |
| Tensile Change, % Maximum | 35 | +5 |
| Elongation Change, % Maximum | 15 | -8 |
| Weight Loss, % Maximum | 10 | 3.9 |
| Air Age - 22 Hrs @ 200°C (392°F) | ||
| Compression Set - % Original Deflection | ||
| .066 to .110 inch, Maximum | 20 | |
| Over .110 inch, Maximum | 15 | 8.56 |
| Air Age - 336 Hrs @ 200°C (392°F) | ||
| Compression Set - % Original Deflection | ||
| .066 to .110 inch, Maximum | 45 | |
| Over .110 inch, Maximum | 40 | 11.4 |
| Oil Age - 70 Hrs @ 200°C (392°F) | ||
| Durometer Change | 0/-15 | -11 |
| Tensile Change, % Maximum | 30 | -16 |
| Elongation Change, % Maximum | 20 | -5 |
| Compression Set - % Original Deflection | ||
| .066 to .110 inch, Maximum | 30 | |
| Over .110 inch, Maximum | 10 | 3 |
| Volume Change, % | +1/+25 | +17 |
| Fuel Age - 70 Hrs @ 24°C (75°F) (Fuel B) | ||
| Durometer Change | +5/-5 | -1 |
| Tensile Change, % Maximum | 20 | -10 |
| Elongation Change, % Maximum | 20 | -8 |
| Volume Change, % | 0/+5 | +1.0 |
Contact us to learn more about our rubber compounds, or submit a Request for Quotation for your next project.
