Note: Adhesion tests on project specific substrates must be performed and procedures agreed with all parties before full project application. For more detailed advice and instructions contact Sika Technical Services.
- The substrate must be clean, dry, sound and free from oils, grease, dust, cement laitance and loose or friable particles.
- Use wire brushing, abrading, grinding or grit blasting equipment to prepare the substrate.
Completely remove all dust, loose and friable material from all surfaces before application of any activators, primers or adhesive preferably by industrial vacuuming equipment.
Concrete / cementitious screeds
Grind flat the substrate to provide a smooth surface without any surface irregularities.
Fill any voids or cavities with appropriate Sika® compatible flooring repair or levelling products.
Calcium sulphate (Anhydrite) screeds
Grind flat the substrate to provide a smooth surface without any surface irregularities.
Fill any voids or cavities with appropriate Sika® compatible flooring repair or levelling products.
Mastic asphalt
Prime with Sika® Primer MB and broadcast with quartz sand. Refer to individual Product Data Sheets.
Glazed or unglazed ceramic tiles
Degrease and clean with Sika® Aktivator-205. Alternatively grind glazed surfaces to remove the glaze.
Wood
Note: Wood types such as chipboards (V100), OSB or plywood as well as gypsum boards must be securely fixed to the substructure.
Note: For floating dry floors, contact Sika Technical Services for additional information.
Remove any surface irregularities using abrading equipment.
Other substrate types
Contact Sika Technical Services.
Priming
The Product can be used without priming on concrete / cementitious/ anhydrite screeds, chipboards, concrete and ceramic tiles.
Use Sika® Primer MB for broadcasted mastic asphalt, concrete / cementitious subfloors or screeds with excessive moisture content, old adhesive residue or weak substrates. Refer to individual Product Data Sheet or contact Sika Technical Services for additional information.
Before wood floors can be installed in non-insulated areas, such as basements or other areas without a damp proof membrane, Sikafloor®EpoCem must be applied and sealed with Sika®Primer MB to control the moisture. Contact Sika Technical Services for additional information.