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ELASTOSIL® R 756/40 OH

Chemical Family
Silicones

ELASTOSIL® R 756/40 OH is a high consistency silicone rubber that undergoes peroxide curing. The resulting vulcanizates exhibit outstanding resistance to hot air, especially when a heat stabilizer is added. These vulcanizates also demonstrate favorable properties such as good tear resistance, low compression set, and high elasticity.

Product families

Elastomers — Specialty Elastomers
  • Silicone Elastomers

Other characteristics

Brand
ELASTOSIL® R
End Uses
Automotive Components, Household Goods
Features

Food Contact Acceptable, Heat Resistance, High Consistency, High Elasticity, High Temperature Application, Hot Air Resistant, Low Compression Set, Tear Resistance

Polymer Name
Silicone Elastomer
Tear Strength
20.0 - 20.0 kN/m
Markets
Consumer Goods
Cure
Chemical Cure
Applications
Consumer Goods — Housewares
Technology
Elastomers
Labeling Claims
Food Contact Acceptable
Special Features
  • Food-contact
  • Heat resistant
  • Low compression set
Material Features
  • Food Contact Acceptable
  • Heat Resistance
  • High Consistency
  • High Elasticity
  • High Temperature Application
  • Hot Air Resistant
  • Low Compression Set
  • Tear Resistance
Storage Information

Please store the cardboard boxes in a dry and cool place. Already opened boxes should be closed again to avoid any contamination.

Technical data

Table 1 of 2

9 rows
CharacteristicValueUnitMethod
Elongation (at break, After heat aging 1000 hours, 250°C)260%ISO 37
Elongation (at break, After heat aging 168 hours, 250°C)470%ISO 37
Elongation (at break, After heat aging 168 hours, 300°C)200%ISO 37
Shore Hardness A (After heat aging 1000 hours, 250 °C)48—DIN ISO 48-4
Shore Hardness A (After heat aging 168 hours, 250 °C)34—DIN ISO 48-4
Shore Hardness A (After heat aging 168 hours, 300 °C)62—DIN ISO 48-4
Tensile Strength (After heat aging 1000 hours, at 250°C)4.4N/mm²ISO 37
Tensile Strength (After heat aging 168 hours, at 250°C)5N/mm²ISO 37
Tensile Strength (After heat aging 168 hours, at 300°C)5.1N/mm²ISO 37

Table 2 of 2

7 rows
CharacteristicValueUnitMethod
Compression Set (Curing Agent C1, at 22 hours, 175°C)9%DIN ISO 815-1 type B method A
Density (Curing Agent C1)1.11g/cm³DIN EN ISO 1183-1 A
Elongation (at break, Curing Agent C1)610%ISO 37 Type 1
Rebound Resilience (Curing Agent C1)63%ISO 4662
Shore Hardness A (Curing Agent C1)41—DIN ISO 48-4
Tear Strength (Curing Agent C1)20N/mmASTM D 624 B
Tensile Strength (Curing Agent C1)8.8N/mm²ISO 37 Type 1

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