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ELASTOSIL® R 752/70 OH

1 of 127 products in this brand
ELASTOSIL® R 752/70 OH is a high-consistency silicone rubber (HCR) known for its unique properties. The vulcanizates produced from this product exhibit very low rebound resilience and high damping capability. It is particularly suitable for the manufacturing of low-modulus rubber articles using compression, transfer, or injection molding techniques.

Polymer Name: Silicone Elastomer

Processing Methods: Compression Molding, Injection Molding, Transfer Molding

End Uses: Automotive Components

Features: Good Damping, High Consistency, Low Modulus, Low Resilience

Tear Strength: 22.0 - 22.0 kN/m

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Identification & Functionality

Chemical Family
Polymer Name
Technologies

Features & Benefits

Special Features

High damping

Applications & Uses

Cure Method
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications
  • Dairy & Food Applications
  • General Automotive Parts
  • Molded Parts
  • Vibration Damping
Application Details
  • ELASTOSIL® R 752/70 OH is particularly suitable for the manufacturing of low-modulus rubber articles by compression, transfer or injection molding.
  • Some special applications, such as highly damping elements, require silicone rubbers with low rebound resilience.

Processing

The raw rubber requires the addition of peroxides for vulcanization at elevated temperatures. A homogeneous incorporation is a must. At processing temperatures below 30°C the stickiness on the roll mill can be reduced. Pot life is depending on the used peroxide and storage condition.

Properties

Physical Form
Cured Properties
ValueUnitsTest Method / Conditions
Compression Set (Curing Agent C1, at 22 hours, 175°C)19%DIN ISO 815-1 type B method A
Density (Curing Agent C1)1.22g/cm³DIN EN ISO 1183-1 A
Elongation (at break, Curing Agent C1)460%ISO 37 Type 1
Rebound Resilience (Curing Agent C1)35%ISO 4662
Shore Hardness A (Curing Agent C1)70DIN ISO 48-4
Tear Strength (Curing Agent C1)22N/mmASTM D 624 B
Tensile Strength (Curing Agent C1)8.5N/mm²ISO 37 Type 1
Properties
  • This product can be used within a temperature range of - 55 °C to + 210 °C.
  • The addition of heat stabilizers at service temperatures of more than 180 °C is recommended.
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.