Thinset laying method

This type of laying presents a better resistance to both chemical and mechanical aggressions. It can be used for new work as well as for repairs, which must often be carried out without interrupting production. It is the quickest method for carrying out repairs, which limits the immobilization of the areas (e.g. over a weekend provided that the requirements concerning humidity, temperature and other specificities of the products used are respected).

This laying is recommended for industrial floors exposed to temperature and humidity variations, chemical attacks and structural deformations, such as manufacturing workshops in the chemical industries, pharmaceutical or food industries, industrial kitchens, etc. In case of laying on floors where deformations or deflections may be important, lay on a flexible layer of polyurethane type FB70. This layer is 2 to 3 mm thick and ensures the waterproofing of the construction.

Our sales team remains at your disposal to elaborate a prescription adapted to your site according to your specific needs or for any technical question.

The checking of the subfloor is an essential step on which will depend the quality of the laying. If the subfloor does not reach the required flatness and the required slope shape, the subfloor will have to be reworked with our epoxy resurfacing mortar.
Remove all non-cohesive or non-adherent parts as well as any substance that could compromise the adhesion (dust, paint, wax, oil…).
Cement laitance must also be removed, by shot blasting for example.

Particular care must be taken to measure the humidity level to avoid future disorders:

• Less than 3% humidity, use PRIMER FB67.
• Between 3 and 5% humidity, use PRIMER H.
• Above 5% humidity, two cases:
  • Allow the floor to dry when the moisture comes from above the subfloor : as in the case of water spilling on the surface when using floors for example.
  • However, if the moisture comes from below the slab (rising moisture by capillary action or diffusion), laying is not recommended to prevent any risk of delamination of the future flooring.

For optimal adhesion, the application of the adhesive mortar FB67 must be done within 48 hours maximum after the application of the PRIMER FB67 or PRIMER H. After this time, a new layer of primer must be applied. To reinforce the adhesion, sand the primer FB67 or the primer H  with our sand HN0.6-1.6.
However, sand cannot be used when FB70 have to be used (risk of perforation).

For more information on our products, consult our Technical Data Sheets.

For optimal adhesion, the application of the adhesive mortar FB67 must be done within 48 hours maximum after the application of the PRIMER FB67 or PRIMER H. After this time, a new layer of primer must be applied. To reinforce the adhesion, sand the primer FB67 or the primer H  with our sand HN0.6-1.6.
However, sand cannot be used when FB70 have to be used (risk of perforation).

 For more information on our products, consult our Technical Data Sheets.

Special care must be taken when treating the specific points (connection with a drains or gutters,pipe passing through the floor, floor/wall connection, overhangs, etc.). Contact your sales representative for more information – page Contact