SONAX Black Streak Remover is an intensive cleaning agent with abrasive particles whose task is to remove dark streaks and stains caused by rain and moisture. It can be used to clean glass, painted surfaces and GRP glass fiber reinforced materials. This makes it ideal for cleaning all types of caravans, semi-trailers, campers, plastic covers for e.g. motorcycles and others. The product is easy to use and quick to apply.