What do you apply to hardwood?

For indoors, use Osmo Blanke Was for a natural wet look. For outdoors, choose Osmo UV-Beschermingsolie or Osmo Terras-Olie for optimal protection.

How should you treat hardwood?

For indoor use, sand the surface and apply Blanke Was in thin layers. For outdoor use, de-grey the wood if necessary and then apply a thin layer of oil.

Does hardwood need maintenance?

Yes, use Osmo Terrasreiniger and check annually if a new coat is needed.

How can I make hardwood look beautiful again?

Use Osmo Power-Gel Hout Ontgrijzer to restore the original color.

Is it better to stain or varnish hardwood?

Stain or oil is better than varnish, because the wood can continue to breathe and will not peel.

Treating hardwood: how to ensure optimal protection

Treating hardwood extends its lifespan and preserves its natural appearance. Read which treatment suits your application and how to optimally protect hardwood.

What you need for this tutorial;

Hardwood is a strong, durable type of wood that is widely used for garden furniture, decking, and indoor applications. However, hardwood requires regular maintenance to prevent it from turning gray, drying out, or becoming damaged by weather and daily use.

In this tutorial, you will learn how to treat hardwood, both indoors and outdoors. You will discover which Osmo products are most suitable and how to easily protect the wood against moisture, UV radiation, and wear.

Videos: Treating hardwood

In these videos you will see how to oil decking and how to apply Osmo Terras-Olie.

Terras oliën: zo zet je jouw vlonder in de olie

Osmo Terras-Olie aanbrengen

Step-by-step plan: treating hardwood indoors

For indoor hardwood, we recommend Osmo Blanke Was, a product specifically developed for hardwoods such as meranti, wenge, and merbau. This product provides a natural wet look without shine and protects the wood against moisture and dirt.

Follow these steps for a perfect result:

To sand

Use sandpaper with grit 40/80/120 if it has a treatment other than oil.
Is the wood already oiled? Create a test area to check if a new layer adheres well.

Apply first layer

Apply a very thin layer of Osmo
Use approximately 35 ml per m².

Apply second layer

Apply another thin layer and repeat the process.
Allow the surface to dry completely before putting it into use.

Treating hardwood outdoors

For outdoor hardwood, it is important to protect it against rain, UV radiation, and graying. You do this by removing the graying from the wood and treating it with a suitable oil. This way, the wood lasts longer.

Cleaning or de-greying

For greyed wood: first use the Osmo Power-Gel Hout Ontgrijzer to the original
Clean the surface with Osmo Terrasreiniger to remove dirt and algae.

Sanding (if necessary)

Use grit 40/80/120 if there is an old finish on the wood.
Is the wood already oiled? Then sanding is not always necessary. Test whether a new coat adheres immediately.

Apply first layer of oil

Apply a thin layer of oil with a (block) brush.
Use Osmo UV-Beschermingsolie for vertical surfaces such as fences, and Osmo Terras-Olie for horizontal surfaces such as patios/decking. Use Osmo Natuurlijke Olie-Beits for hardwood garden furniture, for example.

Dry and apply second coat

Allow the first coat to dry for 8-12 hours.
Apply a second coat for long-lasting protection.

8 to 12 hours

Benefits of Osmo hardwood oil

Treating hardwood with Osmo products offers several benefits:

Protects against moisture and UV radiation, preventing graying and mold formation.
Durable protection: the wood stays beautiful longer and requires re-treatment less frequently.
Natural appearance: Osmo products leave the wood grain visible.
Low maintenance: no sanding required for a new coat.

Tips for long-lasting protection

⭐ Apply thin layers to achieve an even distribution.
⭐ Work in dry conditions at temperatures between 10°C and 25°C.
⭐ Use a test area to check if the product adheres well.

Supplies for treating indoor hardwood

Outside

Color examples

Treatment with Osmo products ensures a natural look while providing optimal protection for the wood.

Osmo Blanke Was provides a wet-look finish without shine.
Osmo UV-Beschermingsolie and Terras-Olie are available in various shades that preserve the wood grain.

Want to be sure the color is to your liking? Order a sample and test beforehand!