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.
Step-by-step plan: treating hardwood indoors
For indoor hardwood, we recommend Osmo Clear Wax, 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 Wood Degreaser to the original
- Clean the surface with Osmo Patio Cleaner 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 Protection Oil for vertical surfaces such as fences, and Osmo Patio Oil for horizontal surfaces such as patios/decking. Use Osmo Natural Oil Stain 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.
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 Clear Wax provides a wet-look finish without shine.
- Osmo UV Protection Oil and Deck Oil 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!
UV protection oil: color examples for upright wood parts
Terrace Oil: color examples for horizontal wood parts
Maintenance of hardwood
Proper maintenance ensures your hardwood stays beautiful for longer.
Indoors
- Daily cleaning: Use Osmo Wisch-Fix or Osmo Spray Cleaner
- Light wear? Use Osmo Liquid Maintenance Wax
- Need a new protective layer? Use Osmo Intensive Cleaner + Maintenance Oil.
Outdoors
- Clean twice a year with Osmo Patio Cleaner
- Check annually if a new protective layer is needed.
- Use Osmo Power-Gel if the wood turns grey.
👉 With Osmo, sanding is no longer necessary for maintenance!
Frequently asked questions about treating hardwood
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