Hi we had a log burner fitted about 12 months ago, and a chamber was created using fireboards which we painted with normal white emulsion, this has now blistered on both sides. All the heat proof paint seems to be in aerosol form,which we dont really want as the gap between the boards and the fire is about 4 inch tops and the spray is likley to go everywhere. Any ideas anyone thanks ps its got to be white or creamy.