I have been really impressed with Dulux Trade Weathershield exterior masonry paint (15 year guarantee), and equally unimpressed with both Leyland and Dulux (non-Trade) interior white matt emulsion - watery rubbish. Is there any good reason why I shouldn't use the Weathershield indoors as a matt emulsion replacement? It is breathable, waterproof, flexible, covers well, and presumably very hard wearing. What am I missing?
Mike
Mike