Have recently spent a lot and time and effort going on various Polished plastering courses, some people which I made extensive enquiries on this forum said go to Mike wye, and yet having bought his products they constantly tear on me, have bought some sample sets from a company called Goldtrowel, (not advertising but merely stating fact,) their products are spot on, does anyone know why this is why the tearing as I burnish. I have used these samples and I get none of that, anyone got the answers. Was thinking of getting them anaylised. Have a big job on shortly and feel that these products are the right ones to use. Contacted Gtrowel today who say that their products have a Legal Requirement under UK legislation to carry a zerro rating fire certificate. Thoughts appreciated.