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ELASTOSIL® R Plus 5305/70

Chemical Family
Silicones

ELASTOSIL® R Plus 5305/70 is a platinum-catalyzed, addition-curing, two-part silicone rubber specifically designed for the manufacturing of extruded articles. Cured articles exhibit excellent transparency and very good mechanical properties. This silicone rubber is suitable for applications such as ignition and battery cables, utilizing addition curing and two-component systems.

Product families

Applications

Electrical & Electronics — Wire & Cable
  • Building Wires & Power Cables
  • Power Transmission & Distribution

Product Families

Elastomers — Specialty Elastomers
  • Silicone Elastomers

Other characteristics

Brand
ELASTOSIL® R
End Uses
Battery Cable, Ignition Cables
Features

Excellent Transparency Properties, Fast Curing, Good Mechanical Properties, Heat Stabilized, High Consistency, Platinum Catalyzed

Polymer Name
Silicone Elastomer
Tear Strength
42.0 - 42.0 kN/m
Processing Methods
Extrusion
Note

Cure conditions: 15 min / 165 °C in press, post-cured 4 h / 200 °C for cured properties.

Markets
Electrical & Electronics
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.

Cure
Chemical Cure
Technology
Elastomers
Special Features
  • Addition Curing
  • Two-component
Additives Included
Heat Stabilizer
Material Features
  • Excellent Transparency Properties
  • Fast Curing
  • Good Mechanical Properties
  • Heat Stabilized
  • High Consistency
  • Platinum Catalyzed
Application Details

The raw rubber requires the addition of a platinum catalyst 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 catalyst and storage condition. ELASTOSIL® R plus 5305/70 and ELASTOSIL® AUX PT 1 are homogeneously mixed in a ratio of 100 : 1.5.; Care must be taken to keep the compound cool during mixing. Crosslinking begins when ELASTOSIL® AUX PT 1 has been added. The rate and degree of crosslinking depend on the storage time and temperature. At 23 °C the mixture has a pot life of about 24 h. This can be extended by storing the catalyzed mixture at a lower temperature.

Storage Information

Please store the cardboard boxes in a dry and cool place. Once opened, cardboard boxes should always be resealed after use to prevent the platinum catalyst from being poisoned by amines, sulfur or phosphorus compounds.

Chemical Inventories
  • AICS (Australia)
  • DSL (Canada)
  • ENCS (Japan)
  • IECSC (China)
  • PICCS (Phillipines)
  • TCSI (Taiwan)
  • TSCA (USA)

Technical data

Table 1 of 2

1 row
CharacteristicValueUnit
Pot Life (at 23°C)24Hours

Table 2 of 2

7 rows
CharacteristicValueUnitMethod
Compression Set (at 22 hours, 175°C)10%DIN ISO 815-1 type B method A
Density1.18g/cm³DIN EN ISO 1183-1 A
Elongation (at break)590%ISO 37 Type 1
Rebound Resilience57%ISO 4662
Shore Hardness A70—DIN ISO 48-4
Tear Strength42N/mmASTM D 624 B
Tensile Strength9.2N/mm²ISO 37 Type 1

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