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ELASTOSIL® R 701/70 OH

1 of 127 products in this brand
ELASTOSIL® R 701/70 OH is a high-consistency silicone rubber (HCR) grade for extrusion and molding applications. The compound is recommended for all kinds of seals that come into contact with mineral oil. ELASTOSIL® R 701/70 OH is used especially when low compression set is crucial for achieving good seal properties. The compound may also be used for making a high-quality silicone-rubber-covered roller.

Polymer Name: Silicone Elastomer

Processing Methods: Extrusion, Injection Molding

End Uses: Automotive Components

Features: Excellent Elasticity, Excellent Seal Properties, Excellent mineral Oil Resistance, Heat Stabilized, High Consistency, Low Compression Set, Oil Resistant, Reversion Resistance

Tear Strength: 16.0 - 16.0 kN/m

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Polymer Name
Technologies

Features & Benefits

Special Features
  • Oil resistant
  • Ultra-low compression set

Applications & Uses

Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications
  • General Automotive Parts
  • Molded Parts
  • Roller Coatings
Application Details
  • The compounds are recommended for all kinds of seals that come into contact with mineral oils.
  • ELASTOSIL® R 701/70 OH is used especially when low compression set is crucial for achieving good seal properties. The compounds may also be used for making high quality silicone-rubber-covered rollers.

Processing

  • ELASTOSIL® R 701/70 OH is suitable for compression, transfer and injection molding and also for making extruded profiles. ELASTOSIL® R 701/70 OH can be vulcanized with the peroxides normally used for compression molding or extrusion of solid silicone rubber.

Properties

Oil Resistance Properties
ValueUnitsTest Method / Conditions
Elongation (at break, 500 hours, 150°C, Lubrizol® OS 206 304)260%ISO 37
Elongation (at break, 70 hours, 150°C, IRM 901)280%ISO 37
Elongation (at break, 70 hours, 150°C, IRM 903)210%ISO 37
Shore Hardness A (500 hours, 150°C, Lubrizol® OS 206 304)54DIN ISO 48-4
Shore Hardness A (70 hours, 150°C, IRM 901)68DIN ISO 48-4
Shore Hardness A (70 hours, 150°C, IRM 903)54DIN ISO 48-4
Tensile Strength (500 hours, at 150°C, Lubrizol® OS 206 304)6.8N/mm²ISO 37
Tensile Strength (70 hours, at 150°C, IRM 901)7.8N/mm²ISO 37
Tensile Strength (70 hours, at 150°C, IRM 903)6.9N/mm²ISO 37
Volume Change (at 150°C, 500 hours, Lubrizol® OS 206 304)18%
Volume Change (at 150°C, 70 hours, IRM 901)5%
Volume Change (at 150°C, 70 hours, IRM 903)41%
Cured Properties
ValueUnitsTest Method / Conditions
Compression Set (Curing Agent C1, at 22 hours, 175°C)7%DIN ISO 815-1 type B method A
Density (Curing Agent C1)1.3g/cm³DIN EN ISO 1183-1 A
Elongation (at break, Curing Agent C1)280%ISO 37 Type 1
Rebound Resilience (Curing Agent C1)50%ISO 4662
Shore Hardness A (Curing Agent C1)71DIN ISO 48-4
Tear Strength (Curing Agent C1)16N/mmASTM D 624 B
Tensile Strength (Curing Agent C1)7.8N/mm²ISO 37 Type 1
Properties
  • Good heat- and reversion-stabilized
  • Excellent resistance to mineral oil

Non-post-cure properties:

  • The differences in the mechanical properties of post- cured and non-post-cured vulcanizates are only very slight.
  • When Curing Agent E is used, blooming of the decomposition products will not occur.
  • Good elasticity and low compression set, even when Curing Agent E is used.
Note

Cure conditions: 0.7 % ELASTOSIL® AUX Crosslinker C1 (Dicumylperoxide), 15 min / 165 °C in press, post-cured 4 h / 200 °C

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Country Availability
Regional Availability
  • Africa
  • Asia
  • Europe
  • Latin America
  • Middle East
  • North America
  • Oceania
Packaging Information

This product is available in 20 kg and 540 kg cardboard packaging.

Storage & Handling

Storage Information

Please store the cardboard boxes in a dry and cool place. Already opened boxes should be closed again to avoid any contamination.