The substrate must be ready for laying, i.e. level, firm, clean, dry and dust-free. The requirements according to local standards apply.
Concrete, cement screed
Grind surface, e.g. with a single disc grinding machine, until the surface is firm and non-slip and clean thoroughly with an industrial vacuum cleaner.
Calcium sulphate screed, calcium sulphate self-levelling screed
Grind surface, e.g. with a single disc grinding machine, until the surface is firm and non-slip and clean thoroughly with an industrial vacuum cleaner shortly before applying adhesive.
Glazed ceramic tiles
Degrease with Sika® Aktivator-205 or grind surface and clean with an industrial vacuum cleaner.
Dry floor constructions, e.g. wood or plasterboard (chipboard, veneer)
For gluing solid parquet flooring, you need two floating layers of chipboard or OSB boards, offset, glued and screwed together (minimum layer thickness 25 mm). Floating dry floor constructions must have a minimum coating thickness of 22 mm. Otherwise screw or glue these constructions to the substrate so that they are firmly and securely seated.
Other substrates
Please contact Sika Technical Service.
Sika® AcouBond® System can be used without primer on (ready to install) cement screeds, calcium sulphate creeds, sanded mastic asphalt, chipboard V100, concrete and ceramic tiles.
Pre-treat cement screeds with high moisture content and substrates bearing traces of old adhesive with Sika® Primer MB, Sika® Primer MB Rapid or Sika® Primer MR Fast.
Cement-based substrates with excessive residual moisture and substrates with old adhesive residues should be pre-treated with Sika® Primer MB, Sika® Primer MB Rapid or Sika® Primer MR Fast.
For further information, consult corresponding product data sheet or contact the local Sika technical service.