How To Apply Osmo Polyx-Oil



To keep your new oak flooring in top condition, you need to finish it with some form of protective coating.

We think the best products for doing this are natural hard wax oils.

One of the most popular of these is Osmo Polyx-Oil.

This natural product is available in either a Satin or Matt finish, is incredibly hard-wearing, micro-porous (breathable) and also water repellent.

We've created this mini guide and video to show you how to apply Osmo Polyx-Oil - it also applies to other hardwax oils like Blanchon.

( To download a printable pdf version of this guide, click here)

What You Will Need

  • Osmo Polyx-Oil Satin Or Matt (A 2.5 litre tin will cover 30 square metres with two coats)
  • Vacuum Cleaner/Dust Pan and Brush
  • Natural Bristle Brush (Osmo Natural Bristle Brush used in example)
  • Floor Brush (Osmo Floor Brush used in example)
  • Stirring Implement
  • Tray

1. Cleaning The Surface

Begin by completely cleaning the surface of the oak flooring using a vacuum cleaner or dust pan and brush.

This will remove any dirt or dust particles which may be sitting on top of the boards and would contaminate the oil later on.

You should also make sure that the skirting boards are also clear from dust and dirt.

2. Covering The Skirting

Once the area has been cleaned over, the next step is to cover the skirting with the Osmo Polyx-Oil. For this example we have decided to use the Matt finish.

As Osmo Polyx-Oil is supplied ready to use, there is no need to thin it - all you need to do is stir it well.

Once stirred, apply the oil using a natural bristle brush.

Simply dip your brush into the oil, being careful not to overfill it, then brush evenly along the wood grain.

Any surplus should be removed immediately.


3. Apply To The Flooring

With the skirting now coated, the next job is to get to work applying the oil to the oak flooring.

Pour the oil, a couple of centimetres deep, into a flat tray.

Next dab your floor brush into the mixture, being careful not to overfill the brush.


Starting from the furthest point from the door, brush outwards thoroughly and evenly along the grain of the wood.


Continue this process until the whole room is covered.


4. Drying

Once applied, the first coat should be left to dry for at least 8-10 hours ensuring good ventilation.

The second coat should be applied the same way as before.

This coat will flow over the surface much better than the first and be easier to apply.

Again 8-10 hours should be allowed for drying with good ventilation.

5. Cleaning The Brushes

Once you've applied the oil,  your brushes can be cleaned using white spirit or benzene-free brush cleaner.

Osmo also provide their own Brush Cleaner & Thinner which is made specifically for cleaning brushes which have used their oils and waxes.

First Coat

6. Job Done!


The instructions printed above say, "Starting from the furthest point from the door, brush outwards thoroughly and evenly across the grain of the wood". But the video clearly shows along the grain, is this a typo?

Best Regards

Mozzy August 6, 2015 at 8:36pm

I have seen videos where you mix some of the sanding dust with a product to seal between the floorboards. Can I do this with this product or is this something different that I need to use first then use the Osmo product?

julie October 27, 2015 at 8:00am

Great advice is this product any good for protection against dogs ? I'm in the market for new oak wooden flooring is this the best way to go thankyou

David Mitchener April 11, 2016 at 6:10pm

Hi David,

We actually have a guide where we tested out a number of oak flooring finishes which may be of interest to you. In this guide we tested each of the brands durability and resistance to the likes of vinegar, washing up liquid, brown sauce etc. This can be found via the following link:

Hope this helps with your decision making.

Peak Oak April 12, 2016 at 12:52pm

Hi Mozzy,

Yes it should indeed read along the grain, it has been updated now.

Many thanks!

Peak Oak April 12, 2016 at 12:57pm

I found that applying in December with doors open for ventilation that the oil was very thick and really difficult to apply thinly. I warmed the oil a little and it was then very easy to apply. Hope this helps others.

Helen FARAHAR December 8, 2017 at 5:28pm

can you walk on it while its drying

lizzie January 14, 2018 at 7:58am

Hi Lizzie,

For the Osmo Polyx-Oil approximately 8-10 hours should be left for each coat to dry. Once dry, the flooring can be walked on, but with special care over the first few weeks.

Peak Oak February 6, 2018 at 12:27pm

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