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ELASTOSIL® R 502/75 OH

1 of 127 products in this brand
ELASTOSIL® R 502/75 OH is a peroxide-crosslinking HCR silicone for the manufacture of silicone-insulated safety cables that maintain circuit integrity. In case of fire, ELASTOSIL® R 502/75 OH forms a ceramic-like layer with high insulation resistance, good mechanical stability, and low smoke formation.

Polymer Name: Silicone Elastomer

End Uses: Cable Jacketing, Cables, Safety Cables

Features: Flame Retardant, Good Mechanical Properties, High Consistency

Tear Strength: 24.0 - 24.0 kN/m

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Polymer Name
Technologies

Features & Benefits

Special Features

Ceramifying

Applications & Uses

Cure Method
Plastics & Elastomers End Uses
Applications

Safety Cables

Application Details
  • For flame resistant cable construction (safety cables). Cables containing ELASTOSIL® R 502/75 OH have successfully passed standards, like NFC 32070 CR1, BS 6387 CWZ, DIN 4102, part 12 (E30,-60,-90), UL 2196, EN 50200, IEC 60331-11, etc.

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

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Recommended Service Temperature- 55 to + 210°C
Cured Properties
ValueUnitsTest Method / Conditions
Compression Set (Curing Agent C6, at 22 hours, 175°C)56%DIN ISO 815-1 type B method A
Density (Curing Agent C6)1.28g/cm³DIN EN ISO 1183-1 A
Dielectric Strength (Curing Agent C6)23kV/mmIEC 60243-1
Dissipation Factor (tan δ, at 50Hz)14 x 10⁻³ IEC 62631-2-1
Elongation (at break, Curing Agent C6)400%ISO 37 Type 1
Permittivity (at 50Hz, Curing Agent C6)3.2IEC 62631-2-1
Shore Hardness A (Curing Agent C6)73DIN ISO 48-4
Tear Strength (Curing Agent C6)24N/mmASTM D 624 B
Tensile Strength (Curing Agent C6)8.7N/mm²ISO 37 Type 1
Volume Resistivity (Curing Agent C6)10¹⁵Ohm-cmIEC 62631-3-1
Properties
  • In case of fire ELASTOSIL® R 502/75 OH forms a ceramic-like layer with high insulation resistance, good mechanical stability and low smoke formation.
  • The color of the rubber base is white. Colors will not match the RAL color codes of the masterbatches used in paste or pellet form in the compound (pastel colors).
Note

Cure conditions: 1.2 % ELASTOSIL® AUX Crosslinker C6 [2.5 Bis(t-butylperoxy)-2.5 dimethylhexane, 45 %], 15 min / 165 °C in press.

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 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.