Painting Over Gloss Paint: How to Make New Paint Stick
Mould on walls should never be painted over without proper treatment. The mould needs to be killed, the affected surface cleaned and dried, and the underlying moisture problem addressed before any new paint is applied. Proper preparation also includes sanding where required, using a mould resistant primer, and finishing with an anti mould topcoat. This process helps prevent mould stains from returning through fresh paint and gives the new coating a cleaner, longer lasting finish.
