• If used together with Boat Canvas Cleaner please read these Do's and Don't.
  
  • Do
    
    • Test on an inconspicuous area to ensure canvas is colourfast dyed.
    • Spray mist the canvas boat cover with water prior to application.
    • Use a clean paint brush to apply.
    • Leave Boat Canvas Cleaner on for 10-20 minutes for general cleaning.
    • Leave Boat Canvas Cleaner on for 40-60 minutes for stubborn dirt, and to remove any previous waterproofing treatments.
    • Wear protective gloves whilst applying.
    • Use every 6-12 months.
  • Dont
    
    • Use a power jet wash to clean a canvas boat cover
    • Use a detergent based cleaner
    • Apply in direct sunlight.
    • Forget to shake the bottle prior to use.

Marine Ultra Proofer will re-establish the original 'as new' waterproof weather barrier of your boat covers, spray hoods, canopies and bimini tops.

The recently improved formulation now has the added benefits of UV factor protection and a mould/mildew growth inhibitor to ensure covers look like new for longer.

Before applying Marine Ultra Proofer we recommend using Renovo Boat Canvas Cleaner according to the severely soiled instructions on the bottle to thoroughly clean your canvas.

Marine Ultra Proofer will help to prevent the harmful penetration of everyday dirt into the fibres of new and old canvas boat cover material and help to keep the re-colour provided by Boat Canvas Reviver fresher for even longer.