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Deck Cleaner

Cleaner and brightener for all types of weathered marine wood

from 3 reviews
Deck Cleaner
  • Lightens and restores color to all grayed, weathered marine wood without bleaching
  • Non-aggressive and easily rinsed with water
  • Can clean and rejuvenate, plastic, gel coats and GRP
  • Fast-acting - restores wood to its natural color in just 15 minutes
  • Can be used as a neutralizer after using Marine Strip

Deck Cleaner is a powerful cleaner and brightener that removes ground in and surface dirt while restoring a bright, vibrant look to fiberglass and grey, weather-beaten marine wood such as teak and mahogany that is unfinished, to its natural color without bleaching.

Unlike bleach or chlorine-based cleaners, Deck Cleaner will not damage the wood’s fibers. Deck Cleaner is fast-acting and can restore the original color of your wood surface in as little as 20 minutes with no laborious and backbreaking sanding! It is safe to use on all wood species including teak, iroko, mahogany, oak, larch and pine and is also an excellent degreaser for use on tropical hardwoods to allow finishes like Deks Olje D1 to penetrate.

Deck Cleaner can remove rust stains and will also neutralize wood surfaces which have been stripped with a stripping product such as Owatrol’s Marine Strip, leaving the surface ready for applying your chosen finish. Deck Cleaner can also be used to restore the luster to faded plastics and fiberglass dulled by weathering and UV rays. Deck Cleaner is biodegradable and does not contain solvents or bleach, you can rinse it simply with water.

Ideal Uses for Deck Cleaner

  • Reviving neglected decks and handrails
  • Neutralizing stripped surfaces before applying a finish
  • Degreasing tropical hardwoods to aid penetration of your chosen finish
  • Cleaning previously coated wood surfaces which are dirty
  • Lightening and restoring grayed weathered marine wood

NOTE: Wear chemical resistant gloves, safety goggles and protective clothing

Please Note, do not use Deck Cleaner on aluminium

Application of Deck Cleaner

Caution: Surfaces may be slippery when wet. Use caution when walking on wet surfaces during application. Deck Cleaner may dull painted surfaces and some metal fixings if left on too long. Rinse off quickly or wipe with a wet cloth.

Applying Deck Cleaner to Wood

First wet surface with fresh, clean water. Then apply Deck Cleaner with a synthetic brush or roller (medium or long pile) and scrub the surface with a stiff nylon or synthetic brush.

Leave it to stand for approximately 10-20 minutes. If the surface starts to dry, dampen it with a mist application of water.

After waiting for 10-20 minutes, scrub the surface whilst rinsing with water or use a pressure washer (max. 60 bar). If required, repeat the procedure. Allow the wood to dry for 48 hours or until the wood meets the moisture content required by the chosen finish.

Applying Deck Cleaner to plastic or GRP

First, wet the surface with fresh clean water. Next, apply Deck Cleaner using a brush and leave it for 10-20 minutes to work. Now scrub the surface with a soft or medium nylon scrubbing brush and rinse with large amounts of fresh clean water.

Applying Deck Cleaner to rust stains

First, wet the surface with fresh clean water, then apply Deck Cleaner with a stiff nylon scrubbing brush working it into the rust stain.
Leave it to work for a minimum of 10 minutes or until the stain has gone. Then scrub the surface with stiff nylon scrubbing brush and rinse with large amounts of fresh clean water.

Clean Up

Clean all tools used with soap and water.

After Clean Up

We recommend protecting and enhancing the natural beauty of your wood with Owatrol penetrating wood finishes.

Things to Remember

  • Shake container thoroughly before use.
  • Cover any areas you want to protect.
  • Thoroughly wet surrounding plants and shrubs.
  • Apply between 5˚C and 35˚C.
  • Do not apply on a hot surface as the product will dry too quickly.
  • If cleaning vertical wood, work from bottom to top to avoid streaking.

3 reviews for Deck Cleaner

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  1. Avatar

    Kathleen. L

    Wow! It really works!

  2. Avatar

    Eva Verified Owner

    This stuff is absolutely magic. The teak trim on the outside of our boat was a shabby gray and very dry. We followed the directions for the Deck Cleaner and then for Dek Olje D1. The work was very efficient. After the Deck Cleaner, the wood was a beautiful light honey color. After three coats of the Dek Olje D1, the wood turned a lovely deep teak color and looked much less dry. Will recommend this to everyone!

    • Owatrol Team

      Owatrol Team

      Hi Eva,

      Thank you for your review of Deck Cleaner and Deks Olje D1 – we are glad you had a great experience using them on your boat.

      If you have any before and after shots of you using these products, we would love to see and share them on our social media pages – if you are happy to do this, please send your pictures to: sales@owatrolusa.com

      Thanks again.

      All the best,
      The Owatrol Team

  3. Avatar


    I use this to clean my cement walk way. it works wonderfully. Does not harm surface. Found this product and it’s other use on u-tube. I have rust residue, from spring water which waters my lawn, this is my must have to remove the rust. Just amazing results. Now i need to try it on wood patio.

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This coverage indication is only a guide and actual coverage is dependent on surface type, age, porosity etc.
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Coverage: 5-10m2 (54-108 ft²) per liter
Tools: Soft brush, stiff bristle/nylon brush, power-washer
Suitable for: Exterior use
Clean up: Water
Working Time: 10-20 mins
Suitable Surfaces: All exterior wood surfaces, plastic, GRP