OSMO Wood Putty

OSMO Wood Putty


Osmo Wood Putty is a clear polymer dispersion specifically designed for filling cracks and joints in sanded parquet.

Osmo Wood Putty provides a reliable solution for filling cracks and joints in sanded parquet. Its high filling strength, quick drying times, good sanding properties, and color-matching capabilities make it a valuable product for achieving a quality finish on your parquet flooring.Extremely high filling strength: The Wood Putty has excellent filling properties, allowing it to effectively fill cracks and joints in the parquet surface. It provides a strong and durable bond, ensuring long-lasting results.

  • Short drying times: The Wood Putty dries relatively quickly, minimizing the waiting time before further treatment or finishing of the parquet. This helps to expedite the overall process and allows you to proceed with sanding and other necessary steps promptly.
  • Good sanding properties: After the Wood Putty has dried, it can be easily sanded. This ensures a smooth and even surface, enabling you to achieve a professional finish on the parquet flooring.
  • Color matching with subsurface: One significant advantage of Osmo Wood Putty is that it can be combined with sanding dust. By mixing the putty with sanding dust from the same wood species, you can create a mixture that perfectly matches the color of the subsurface. This helps to seamlessly blend the filled areas with the rest of the parquet, creating a uniform and natural appearance.


To ensure a successful application of Osmo Wood Putty, follow these methods:

  1. Stirring: Before using the putty, stir it well in its packaging to ensure any sediment is thoroughly mixed in.
  2. Mixing with sanding dust: If possible, collect sanding dust from the same type of wood as the parquet, with a grain size of 80-120. Add the sanding dust to the putty, aiming for a thick paste consistency. The recommended amount is approximately 15% weight increase by adding sanding dust. This mixture helps achieve a color match with the subsurface.
  3. Paste consistency: It’s important to achieve the right paste consistency. If the paste is too thick, it won’t adhere well to the sides of the joint and may be removed during sanding. If it’s too thin, it may leave unfilled holes. Adjust the consistency as needed to ensure a flawless application.
  4. Filling joints: Using a rust-free double blade scraper, fill the joints in the flooring diagonally while pressing the wood putty firmly into the joints. Repeat the process if necessary to ensure complete filling.
  5. Drying and sanding: Allow the filled joints to dry for 30-60 minutes. Afterward, use coarse sandpaper (grit P80) to coarsely sand the dried paste. Follow up with finer sandpaper (grit P100-120) for a smooth finish. Ensure no wood putty is left on the surface of the parquet after sanding.
  6. Finishing treatment: Once the joints are filled and sanded, you can proceed with the application of various Osmo oil-wax finishes according to your preference.
  7. Cleaning: If any dirt or stains are left behind by the Wood Putty, they can be quickly cleaned with water.

Note: The mixture and application of the wood putty may vary depending on the wood species and sanding dust used. Therefore, it’s crucial to perform a trial application to ensure satisfactory results. Do not use the putty to fill joints in sprung or plank wood flooring, as it may interfere with the flexibility of the floor.

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