MCS3 Paint Additive is specifically formulated to protect decorative finishes from future mould attack. This should be mixed per every 5 Litre of Emulsion, Paint, Primer, Undercoat, Varnish, Gloss Finish, Wallpaper Paste, Textured Paint or Tile Adhesive. MCS3 Paint Additive prevents the return of mould and mould spores after an area has been adequately treated by MCS1 Mould Clear Solution. MCS3 Paint Additive is supplied in 100ml bottles and can be purchased in a variety of Pack Quantities.