How can joints and cracks in the substrate be reworked according to rules and standards? WITH UZIN RR 203 AND UZIN MK 92 S.

Cracks and artificial joints must be closed prior to the installation of wood flooring. While artificial joints have been deliberately made in the surface, cracks represent damages which may have different causes. In order to avoid the joints and cracks showing through the wood flooring, they mustbe closed. The proven system UZIN MK 92 S, combined with the crack bridge UZIN RR 203, is suitable for both cases.


Processing film: Sealing joints and cracks in wood flooring.

Image gallery: Sealing joints and cracks in wood flooring.

Wood floors can be installed onto substrates which contain joints and cracks as long as the screed does not give way and the area is repaired with UZIN MK 92 S in combination with the crack bridge UZIN RR 203.

Valentin Zeiler
Technical services UZIN

UZIN MK 92 S 2-Component PUR Wood Flooring Adhesive

Hard, shear-resistant and rapid-curing universal adhesive for all types of wood flooring

  • universal use
  • very good ridge formation
  • very rapid curing
  • hard adhesive according to ISO 17 178
  • without emollient ingredients

UZIN RR 203 Crack Bridge

Fibreglass crack reinforcement fleece for repairing cracks, day joints and slight movement on different substrates

  • extremely high tensile strength
  • bridges and reinforces cracks, day joints and transitions
  • easy to apply
  • avoids the use of repair resins
  • very high strength

Installation systems for screeds, floors and wood flooring

Machinery and special tools for substrate preparation and installation of floor coverings

Complete product range for installation, renovation and maintenance of wood flooring

Resin and cementitious floor finishes combining performance and design

Installation systems for tiling and natural stone

High quality painting, plastering and drywalling tools