Cleaning a wooden deck
With Osmo cleaning products, you can de-grey a wooden deck, remove algae and mold, and make the surface less slippery, for both softwood and hardwood. Use Terrasreiniger for regular cleaning, Power-Gel for greyed or slippery areas, and optionally finish with Terras-Olie or Anti-Slip Olie for long-lasting protection.

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How do you clean a wooden deck and remove the greying?
Cleaning a wooden deck restores its beautiful appearance. It is also possible to de-grey greyed decks, removing the grey sheen from the terrace. In addition to the grey layer, Osmo cleaning products also remove algae and mold. This helps make the deck less slippery.
Benefits of Power-Gel (wood degreaser)
- Brings out the original color of the raw wood
- Cleans and removes graying from the surface
- The product is biodegradable
- Based on natural substances
De-greyed versus greyed

Gray terrace

Degreased terrace
Supplies for cleaning a wooden deck
What kind of decking do you want to refurbish?
Different cleaning projects require different products. For the regular cleaning of a wooden deck, the Osmo Deck Cleaner is the right item. You simply mix the Deck Cleaner with water in a bucket. Thanks to its high yield, you can clean up to 100m² of decking with just 1L. Both treated and untreated wood can be cleaned with the cleaner. The product removes dirt from the decking and also reduces algae and mold. The Deck Cleaner contains vegetable oils and soaps, making it an environmentally friendly product.
1. Cleaning grayed decking
Do you have a greyed deck in your garden? And do you want to clean it? Then the Osmo Power-Gel Wood Degreaser is the right product for this. Simply brush this gel onto the deck, let it soak in for 20 minutes, and then scrub the gel with plenty of water, after which the greying will disappear. After cleaning with the Power-Gel, the natural color of the wood will reappear. Do you want to prevent the deck from greying again? Then treat the deck with Osmo Patio Oils. The Power-Gel contains biodegradable oxalic acid and is free of solvents, chlorine compounds, and amines.
When using the Power-Gel, always ensure that stones and tiles are covered. If the Power-Gel gets on these areas, it will leave stains on the tiles.

2. Clean slippery decking and make it non-slip
Power-Gel not only cleans away wood graying but also serves as an effective agent for removing algae and mold. The formation of these unwanted organisms is often triggered by moisture, resulting in a slippery surface on decking, for example. Power-Gel's unique ability to tackle algae and mold contributes to the safety and durability of wooden structures.
By thoroughly cleaning the decking with Power-Gel, not only are the visible signs of graying addressed, but the underlying cause of slipperiness is also tackled. Removing algae and mold contributes to restoring the original texture and grip of the wooden surface. This deep cleaning not only enhances the aesthetic appearance of the decking but also extends its lifespan by preventing mold growth.
Do you want to make the decking truly non-slip? Then it is recommended to apply Osmo Terras-Olie Anti-Slip. This anti-slip oil makes the wood grippier, preventing slipping and falling due to slippery decking. Do you want to apply the Anti-slip Oil? Always ensure that the wood has been treated with a colored patio oil first. The Anti-slip oil cannot be applied to bare or untreated wood.

3. Cleaning hardwood decking
Het grote voordeel van de buiten producten van Osmo is dat deze geschikt zijn voor alle houtsoorten. De Power-Gel en de Terrasreiniger zijn dus geschikt voor zowel zachte- als hardhouten vlonders. Voorbeelden hiervan zijn vlonders gemaakt van: Bankirai, Douglas, Vuren, Massaranduba en Garapa. Na het reinigen is het verstandig om de vlonder te oliën dan trekt water niet meer in en komen algen minder snel terug!

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