Owatrol VC175 is a tropical strength mould killer and algae killer, powerful and long lasting killer which can be added to paint, timber stains, textured coatings, grout, mortar and adhesives. VC175 Stops algae and mould growth when added to paint, mortar, grout or adhesives and keeps the surfaces looking like new. VC175 offers is an inexpensive paint additive which gives long term protection and is suitable for most paints. In damp or humid conditions most surfaces dis-colour and stain with unsightly mildew and mould growth which will continue to be a problem for the life of the surface. A few drops of Owatrol VC175 added to the paint and your surfaces will stay looking like new. Available in a 50ml bottle, 50ml Treats 10 Litres of Paint.