Description
Mapei Prosfas 25Kg is a blend of silicates in water solution with low viscosity and therefore high penetration properties.
It can penetrate to a depth of several centimetres and when dried, it improves the cohesion of cementitious surfaces. Mapei Prosfas 25Kg is ready-to-use and need not be diluted.
- Do not use Prosfas on non-absorbent or wet surfaces.
- Do not use on Mapecem or Mapecem Pronto screeds.
- Do not use on anhydrite surfaces.
- Do not dilute with water or solvents.
- Immediately clean up any drops of Prosfas from ceramic tile, glass, marble, and metal surfaces
The substrate must be dry, clean, free of oils, varnish, levelling compounds and other materials which might prevent the Prosfas from penetrating.
Surfaces of screeds can be repaired using 0.5 to 0.7 kg/m of Prosfas but very porous surfaces may require four to six times as much. Test a small area, especially on very damaged surfaces. Apply several coats to evaluate how much Prosfas is needed to consolidate the substrates.