Wacker Chemie AG


ELASTOSIL® 4000

Sealants & RTV-1

One-component, acid-curing, low-modulus silicone sealant for glazing and industrial applications.

ELASTOSIL® 4000 cures at room temperature under the action of atmospheric moisture to give a permanently flexible silicone rubber.
Typical general characteristics
Property Inspection Method Value
The figures are intended as a guide and should not be used in preparing specifications.
Density at 20 °C ISO 1183-1 A 1.02 g/cm³
Elongation at break ISO 8339 250 %
Extrusion rate - volume flow 450 ml/min
Hardness Shore A ISO 868 20
Skin formation time at at 23 °C / 50 % r.h. 20 min
Tensile strength ISO 8339 0.6 N/mm²
Density at (+/- 0,02 g/cm3) ISO 1183-1 A 1.02 g/cm³ 25 °C
tear-strength ISO 34, method C 4.2 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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