Silicone 70 Specifications
SILICONE 70 DUROMETER
Rubber Specifications
Welcome to our Silicone Specifications Section
Here you will find our Silicone specifications chart which can also be downloaded in PDF. The Silicone properties that are listed below are for our most popular Silicone 70 durometer (70A) rubber material. If you need properties that are different than the ones in the chart below, please take a look at our other popular rubber material specifications otherwise we can compound and reformulate the Silicone rubber specifications to suit your needs. Finding the correct material especially if you are using it for an O-ring seal is important as the seal can degrade easily if the material is not compatible.
Mykin Inc’s RS00170 Silicone compound offers a broad temperature range, from -80º F to +400º F, and excellent dry heat resistance. Silicone has the best low temperature flexibility of all elastomers and can be used in static applications down to -150F. Silicones also has good resistance to ozone and weather. It also proves to be a good insulator. It is not recommended for dynamic conditions due to its low tensile and tear strength.
Download Silicone 70 Information in PDF
| ASTM Designation | ORIGINAL PROPERTIES | ASTM D2000 SPECIFICATION |
|---|---|---|
| Durometer, Shore A | 70 +/- 5 | |
| Tensile, psi (MPa), Minimum | 870 (6) | |
| Elongation, % Minimum | 150 | |
| Specific Gravity | - | |
| A19 | HEAT AGE, 70 HRS @ 225 C | |
| Durometer Change, Points | +10 | |
| Tensile Strength Change, % | -25 | |
| Elongation Change, % Maximum | -30 | |
| B37 | COMPRESSION SET, 22 HRS @ 175 C | |
| Original Deflection, % Maximum | 25 | |
| EO16 | ASTM #1 OIL, 70 HRS @ 150 C | |
| Durometer Change, Points | 0/-15 | |
| Tensile Change, % Maximum | -20 | |
| Elongation Change, % Maximum | -20 | |
| Volume Change, % | 0/+10 | |
| EO36 | ASTM #3 OIL, 70 HRS. @ 150 C | |
| Durometer Change, points | -30 | |
| Volume Change, % Maximum | +60 | |
| EA14 | WATER RESISTANCE 70 HRS @ 100 C | |
| Durometer Change, Points | +/-5 | |
| Volume Change, % | +/-5 | |
| F19 | LOW TEMPERATURE BRITTLENESS | |
| ASTM D2137, Method A | ||
| 3 Minutes @ -55 C | Non-Brittle | |
| G11 | Tear Resistance, Die B, ppi (kN/m) | 51(9) |
SPECIFICATIONS MET
ASTM D2000-01 Grade M5GE706 A19 B37 EO16 EO36 EA14 F19 G11
ZZ-R-765B Class 2a & 2b, Grade 70 and FDA CFR 177.2600
AMS 3304 (Size per AS3582 which replaced MS 9068) Specification