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Hensomastik Fire damper System

For such applications, Rudolf Hensel GmbH has its “mixed penetration seal with fire dampers, type: HENSOMASTIK”, which is classified in the fire-resistance class EI 90 / EI 120 according to EN 13501.



The construction element tests were carried out with fire dampers with a diameter of max. 315 mm and a rectangular size of max. 1500 x 800 mm, in both wall and floor penetration seals. The “soft penetration seal with fire damper, Type: HENSOMASTIK” is a double-panel penetration seal...

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For such applications, Rudolf Hensel GmbH has its “mixed penetration seal with fire dampers, type: HENSOMASTIK”, which is classified in the fire-resistance class EI 90 / EI 120 according to EN 13501.



The construction element tests were carried out with fire dampers with a diameter of max. 315 mm and a rectangular size of max. 1500 x 800 mm, in both wall and floor penetration seals. The “soft penetration seal with fire damper, Type: HENSOMASTIK” is a double-panel penetration seal which consists of two mineral fibre boards each > 50 mm thick, which are coated with HENSOMASTIK 5 KS.

Extra information
  • The HENSOMASTIK mixed penetration seal offers maximum flexibility when installed in walls and floors, also in asymmetric openings
  • It can also be installed in existing openings – these can be up to 40 cm bigger than the dimensions of the fire damper
  • Fire dampers do not need to be inserted into the recess first
  • Fire dampers can be easily exchanged without the need for chiselling work

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  • Hensomastik Fire damper System