Wacker Chemie AG



Liquid silicone rubbers of the ELASTOSIL® LR 3040 series are
paste-like, easily-pigmentable two-component compounds with very short curing times. Their vulcanizates are noted for their high transparency and excellent mechanical and electrical properties. Especially they are noted for a high tear resistance according to DIN ISO 34-1 A (Trousers) and ASTM D 624 B (crescent).
Typical general characteristics
Property Inspection Method Value
The figures are intended as a guide and should not be used in preparing specifications.
Elongation at break DIN 53504 S 1 610 %
Hardness Shore A DIN 53505 41
Rebound elasticity DIN 53512 58 %
Tensile strength DIN 53504 S 1 9.3 N/mm²
Viscosity at (shear rate 1 s-¹) DIN EN ISO 3219 900000 mPa s
Viscosity at (shear rate 10 s-¹) DIN EN ISO 3219 390000 mPa s
Density DIN EN ISO 1183-1 A 1.12 g/cm³
tear-strength ASTM D 624 B 37 N/mm
tear-strength DIN ISO 34-1 A 10 N/mm

All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product’s fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence.

This disclaimer of warranty and liability also applies – particularly in foreign countries – with respect to third parties’ rights.


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