Why do I still have marks after using 3 in 1 Mould Killer?

3 in 1 mould killer is designed to kill the existing mould and spores that will create new growth. Some moulds stain the area they grow on. 3 in 1 mould killer does not remove this stain but will help to ensure against further growth. To allow the area to be decorated I recommend coating with our Polycell Stain Stop and then painting the area.

Find your nearest Polycell stockist:

You can find Polycell products in many supermarkets, major DIY stores and smaller independent stores throughout the UK. The range they stock may vary, so it's a good idea to check product availability with them in advance to avoid disappointment.