Fenwicks are a British company who have been producing some of the best cleaning products available today. Their products are made in the UK to the very highest of standards and surpass their rivals in performance and ease of use. Superior performance and proud to be made in the UK. Fenwicks over wintering protector is a protective jacket for the winter months. Its unique properties actively repel water dirt and algae without the need for a cover. Simply apply after cleaning. It is suitable for use on plastics aluminium glass acrylic windows GRP ABS fibreglass decals sealants paint and much more.