Heavy duty acid & corrosion protection for chimneys

1 Reprofiling
KÖSTER Repair Mortar NC
KÖSTER Repair Mortar R4
2 Surface protection
KÖSTER PSM
3 Surface protection
KÖSTER PSM 2S+
4 Surface levelling and smoothing
KÖSTER C-Coat
5 Paint
KÖSTER Renovation Paint White

One example of the need for heavy duty corrosion protection against acidic fumes and condensate, is the coating of industrial chimneys made of concrete or masonry.

For the restoration of concrete or masonry structures, the substrate is to be mechanically cleaned until a solid, unburdened substrate is achieved. The surface is primed with KÖSTER Polysil TG 500, which hardens the substrate and immobilizes salts. Reprofiling is done with KÖSTER Repair Mortar NC or the class R4 mortar KÖSTER Repair Mortar R4.

The surface is then roughened in order to achieve a strong mechanical bond to the surface and protected with the three-component, highly chemical resistant, silicate and polymer-based special mineral mortar KÖSTER PSM. KÖSTER PSM is applied on horizontal and vertical areas which require very high acid resistance in the range of pH 0 – 8.

Surfaces made from KÖSTER PSM can be directly sealed with KÖSTER PSM 2S + after 4 hours without further mechanical surface treatment. KÖSTER PSM 2S + is a transparent, one-component, solvent-free sealant for mineral surfaces, which is characterized by a particularly high thermal and chemical resistance.

Exterior surfaces can also be repaired with KÖSTER Repair Mortar NC and smooth with the polymer modified levelling mortar KÖSTER C-Coat. The decorative appearance can be achieved with the high quality, matt, water thinnable paint KÖSTER Acrylic Paint. KÖSTER Acrylic Paint slows the diffusion of CO2 from the atmosphere and therefore, slows the carbonation process of concrete.

Always adhere to the specifications in the respective Technical Guidelines.

 

Back

Top
Albania Austria Bosnia and Herzegovina Brasil Bulgaria China Croatia Czech Republic Denmark Finland Germany Ghana Greece Hungary Italy Japan Kazakhstan Kuwait Latvia Lebanon Macedonia Mexico Netherlands New Zealand Norway Panama Poland Portugal Romania Russia Senegal Serbia Slovakia Slovenia South Africa Spain Thailand Turkey Ukraine United Kingdom United States of America