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ELASTOSIL® R 402/75 S

1 of 127 products in this brand
ELASTOSIL® R 402/75 S is a high-consistency silicone rubber (HCR) that is optimized for extrusion. This transparent compound allows for high extrusion speeds and the production of high-quality tubes. The peroxide-cured vulcanizates made from this compound exhibit a unique combination of characteristics. It is noted for its good flexibility, high transparency, and mechanical properties. The compound can be easily pigmented with ELASTOSIL® Color Paste PT.

Polymer Name: Silicone Elastomer

Processing Methods: Extrusion

End Uses: Exhaust Duct Systems, Profiles, Tubes

Features: Consistent High Quality, Excellent Transparency Properties, Food Contact Acceptable, Good Green Strength, Good Mechanical Properties, Good Processability, Heat Stabilized, High Consistency, High Extrusion Speed, High Flexibility, Pigmentable

Tear Strength: 24.0 - 24.0 kN/m

Technical Data Sheet

Knowde Enhanced TDS

Identification & Functionality

Additives Included
Chemical Family
Polymer Name
Technologies

Features & Benefits

Special Features
  • Food-contact
  • High green strength

Applications & Uses

Cure Method
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods
Applications
  • Dairy Applications
  • Profiles & Tubings
Application Details

Postcured parts can be used for food contact applications and are suitable for use under the Recommendation "XV. Silicones" of the BfR and FDA 177.2600 under observance of any given limitations on extractable and volatile substances.

Processing

  • The raw rubber requires the addition of peroxides for vulcanization at elevated temperatures. A homogeneous incorporation is a must, but please avoid temperatures >30°C along the incorporation process in order to maintain best processing behavior. Pot life is depending on the used peroxide and storage condition.

Properties

Cured Properties
ValueUnitsTest Method / Conditions
Compression Set (Curing Agent E, at 22 hours, 175°C)70%DIN ISO 815-1 type B method A
Density (Curing Agent E)1.19g/cm³DIN EN ISO 1183-1 A
Elongation (at break, Curing Agent E)490%ISO 37 Type 1
Rebound Resilience (Curing Agent E)49%ISO 4662
Shore Hardness A (Curing Agent E)74DIN ISO 48-4
Tear Strength (Curing Agent E)24N/mmASTM D 624 B
Tensile Strength (Curing Agent E)9.3N/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 (post-cured 4 h / 200 °C): 1.5% ELASTOSIL® AUX Crosslinker E (50% paste of bis-(2,4-dichlorobenzoyl)-peroxide in silicone fluid); 10 min / 135°C in press

Regulatory & 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.