Fenwicks Overwintering FluidOverwintering is a protective jacket for the winter months.It stops algae growth, repels black streaks and makes spring cleaning easier !It’s simple and easy to apply.Features: 1 Litre Protective coating for the winter months Repels dirt, algae growth and black streaks Long lasting coating - makes spring cleaning easier Contents cover 50sq metres. Step 1: Clean unit with either Fenwicks Caravan or Motorhome Cleaner and allow to dry.Step 2: Mix 1 part Fenwicks Overwintering to 4 parts water. (Usually half a litre of Fenwicks Overwintering with 2 litres of water will cover most units.)Step 3: For best results apply using a garden spray or a sponge or a brush. Cover all surfaces evenly from the bottom up, and leave to dry. It will take 3 to 4 hours to dry properly.Step 4: To remove Fenwicks Overwintering use a 1 to 10 solution of Fenwicks Caravan Cleaner or Fenwicks Motorhome Cleaner. Handy hints The unit may be used without removing Fenwicks Overwintering. You may need to re-apply Fenwicks Overwintering in prolonged bad weather conditions