AS 2930 Anti Saltpetre
3 in 1 treatment in an aqueous phase for repairing walls damaged by the presence of damp and saltpetre before painting or replastering. Also recommended for preventive treatment of walls in good condition.
  • Bactericide/Fungicide
  • Consolidating
  • Waterproofing


 Curative or preventive treatment of interior and exterior walls, both structural and free-standing.
How to apply
  • Remove colouring, render, wallpaper, efflorescences of saltpetre and material in poor condition.
  • Apply 2 successive coats, wet on wet, until the substrate is saturated.
  • Work in a broad area around that being treated.
  • For preventive treatment of the whole wall, work downwards in 1-metre strips.
  • Wait 2 - 3 days before applying any coating.
  • If any efflorescences reappear during the drying phase, repeat the treatment.
  • Plasterboard panels (Pladur®)
  • Plaster
  • Brick
  • Cement
  • Triple action:
    • Bactericidal and fungicidal to eradicate the nitrifying bacteria which cause saltpetre to appear.
    • Consolidates and hardens substrates in poor condition.
    • Water-repellent; repels the water which favours the appearance of saltpetre and damp patches.
  • Can be used as a curative or preventive treatment.
  • Can be used on damp substrates.
  • Quick and easy to apply.
  • Can be painted or covered with wallpaper.
  • Water-based, without unpleasant smells, ideal for interior use.
Technical Features
  • Appearance: Liquid
  • Density (20ºC): Approx. 1.04g/ml
  • pH: Approx. 12
  • Application temperature: Between 5ºC and 30ºC
AS 2930 Anti Saltpetre
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Application Tools:
Brush or roller.
Application Methods:
Apply 2 coats undiluted until substrate is saturated (not excessively). Apply wet on wet without waiting for the product to dry.
0.5L/m2 for 2 coats (depending o the absorbency of the substrate).

Dilution and Cleaning:
Drying Time:
Complete drying: 2-3 days (depending on humidity and temperature).
Interior / Exterior:
Interior and exterior.
White. Transparent once dry.
Available in 5L format.