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Hensotherm 421 Ks

About the product

HENSOTHERM 421 KS is a water-borne intumescent coating for indoor use, which reacts under the influence of heat by swelling to many times of its orginal thickness and producing a layer of carbonaceous foam 

that acts as an insulating layer to delay the steel from reaching its critical temperature.

Possible fire resistance rates are R15 - R150 for open steel profiles and R15 - R180 for closed steel profiles. Approved according to EN 13501-2, ETA No 16/0251, with CE markings applied according to 93/68/EWG.

Remove from the surfaces any contaminants that might be detrimental to surface preparation and painting. Remove also water-soluble salts by using appropriate methods. HENSOTHERM 421 KS is designed to be applied over suitable prepared and primed steel substrate. Steel preparation by blast-cleaning to grade Sa 2½ (ISO 8501-1). Suitable primers are epoxy primers TEKNOPOX PRIMER 4, TEKNOPLAST PRIMER 5, TEKNOPLAST PRIMER 7, INERTA PRIMER 5, water-borne epoxy primer TEKNOPOX AQUA PRIMER 3, alkyd primer TEKNOLAC PRIMER 0168-00 and water-borne acrylic primer KORRO AQUA 2741. The suitability of surfaces painted with other paint types must be evaluated separately

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Hensel Hensotherm 421 Ks

  • Stock: Delivery 2-3 working days• Order item
  • Item no.: 2586571
  • Unit: 25 KG
Limited quantity - item is being omitted
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