SCALP NDS 72 is an acid impregnation solution that completely removes white salts from all types of substrates. This product is also designed for neutralising surfaces that have been cleaned or stripped using alkaline products like SCALP DMC 73. This anti-saltpetre impregnation treatment is recommended for the finish of walls, foundations and façades damaged by salts and other efflorescences.
Mix SCALP NDS 72 well.
Apply to the surface to be treated until total saturation.
Renew the operation as often as necessary. Never rinse.
It is possible to use a film-forming preventive solution: SCALP ANTI-SALPETRE