Marine Vinyl Ultra Proofer


Conditions & Waterproofs Boat Covers

500ml bottle

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In stock

SKU: RBVUP1133 Category: Tag:

Use to waterproof, protect and condition your vinyl boat covers and seats against stains and oxidation, the formulation also contains UV inhibitor to help reduce colour fade.

Before applying Marine Vinyl Ultra Proofer we recommend using Renovo Boat Vinyl Cleaner according to the ‘heavily soiled’ instructions on the bottle to thoroughly clean your seats and covers.

Marine Vinyl Ultra Proofer will help to prolong the life of your vinyl boat covers and boat seats by preventing the accumulation of grime. This helps to keep the original brand new finish and enhances the value of your boat.

Please see the “Do’s & Don’ts” information tab before placing your order.

Do's and Don'ts


Ensure that the vinyl boat cover is thoroughly cleaned.

Ensure that you have sufficient Marine Vinyl Ultra Proofer to complete a full coat.

Keep a soft damp cloth ready to wipe off any splashes or dribbles on bodywork and windows.

Work in a timely fashion to ensure that the edges of the freshly applied Marine Vinyl Ultra Proofer do not dry out too quickly.

Work from the centre outwards round and round the cover.

Apply to a dry cover and allow Marine Vinyl Ultra Proofer to dry completely before applying further product or taking out in the rain.

Use every 6-12 months.


Use on canvas boat covers.

Forget to shake the Marine Vinyl Ultra Proofer bottle prior to use.

Dilute or mix the Marine Vinyl Ultra Proofer with any other product.

Apply the Marine Vinyl Ultra Proofer in direct sunlight, or on a hot day that will cause the Marine Vinyl Ultra Proofer to dry too quickly.

Allow to dry on windows and bodywork.

Apply to canvas boat covers.

Application Instructions

Please note: This product is not suitable for use on fabric boat covers.

How to re-proof your vinyl boat cover

Marine Vinyl Ultra Proofer is best applied out of direct sunlight to ensure that it doesn’t dry too quickly.

  1. Shake bottle thoroughly.
  2. Pour Marine Vinyl Ultra Proofer into a suitable container/bowl.
  3. Start application in the centre of the boat cover and work out towards the edges with a clean 5cm/2inch paintbrush using even strokes across the whole boat cover. If preferred the Proofer can simply be rubbed into the boat cover using a sponge. Wipe excess drips from bodywork, trims and glass with a damp cloth.
  4. Allow the cover to dry completely before exposing it to wet weather.
    Drying time will vary according to atmospheric temperature but it can be as little as half an hour to a few hours.
  5. Wash out brush/sponge in warm soapy water.

The boat cover is now water and stain repellent, will resist the growth of mould/mildew and is protected from harmful Ultra Violet rays.

We recommend to ensure best possible weatherproof protection that Renovo Marine Vinyl Ultra Proofer is applied every six months.