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ELASTOSIL® R Plus 4305/70

Chemical Family
Silicones

ELASTOSIL® R Plus 4305/70 is a two-component, high-consistency silicone rubber specifically developed for the manufacture of extruded articles. Cured articles made from this addition-curing rubber exhibit excellent transparency and demonstrate good to very good mechanical properties. This fast-curing silicone rubber displays good to very good mechanical properties. The vulcanization reaction is significantly faster compared to peroxide-curing materials, thanks to the addition cure process. Additionally, no peroxide decomposition products are formed during vulcanization.

Product families

Elastomers — Specialty Elastomers
  • Silicone Elastomers

Other characteristics

Brand
ELASTOSIL® R
End Uses

Battery Cable, Cables, Ignition Cables, Plugs, Wires

Features

Excellent Transparency Properties, Fast Curing, Food Contact Acceptable, Good Mechanical Properties, Heat Stabilized, High Consistency, Low Compression Set

Polymer Name
Silicone Elastomer
Tear Strength
39.0 - 39.0 kN/m
Processing Methods
Extrusion
Note

Cure conditions: 1.5 parts ELASTOSIL AUX Batch PT 1, 15 min / 165 °C in press, post-cured 4 h / 200 °C for cured properties.

Markets
Electrical & Electronics
Properties

ELASTOSIL® R plus 4305/70 is a fast curing silicone rubber exhibiting good to very good mechanical properties. Thanks to addition cure, the vulcanization reaction is significantly faster compared to peroxide curing materials. No peroxide decomposition products are formed during vulcanization. At service temperatures above approx. 180 °C the addition of heat stabilizers is recommended.

Cure
Chemical Cure
Technology
Elastomers
Labeling Claims
Food Contact Acceptable
Special Features
  • Addition Curing
  • Food-contact
  • Low compression set
  • Two-component
Additives Included
Heat Stabilizer
Material Features
  • Excellent Transparency Properties
  • Fast Curing
  • Food Contact Acceptable
  • Good Mechanical Properties
  • Heat Stabilized
  • High Consistency
  • Low Compression Set

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)14%DIN ISO 815-1 type B method A
Density1.18g/cm³DIN EN ISO 1183-1 A
Elongation (at break)600%ISO 37 Type 1
Rebound Resilience56%ISO 4662
Shore Hardness A70—DIN ISO 48-4
Tear Strength39N/mmASTM D 624 B
Tensile Strength9.1N/mm²ISO 37 Type 1

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