Clear Varnish for Outdoor Use

Without protection, exterior wood can weather quickly due to rain, sun, and dirt. With colorless oil stains from Osmo, the wood remains water-repellent, protected from within, and retains its natural appearance, even on terraces, fences, and facades.

Products in this knowledge item;

What is clear varnish for exterior wood?

Exterior clear varnish is a collective term for colorless outdoor products that protect wood. A clear varnish colors the wood as if it were wet; therefore, it becomes slightly darker with the treatment. Varnishes are normally made of synthetic material. The products from Osmo Netherlands are made on a natural, plant-based oil. This has many advantages, as can be read below.

The colorless product for outdoor use is the Natural Oil Stain 701 Matt. This product colors the wood as if it were wet. This colorless treatment protects the wood against moisture and dirt and is made from natural oils. The Natural Oil Stain can be used as both a first and a second coat, creating a protective surface.

Benefits of Natural Oil Stain

  • Primer and topcoat in one
  • UV-resistant, weather and water-repellent.
  • High yield, 1L = treats 26m²
  • Based on natural substances

Supplies for clear varnishing exterior wood

Matte clear varnish for exterior wood

Osmo Natural Oil Stain dries to a matte finish, meaning it contains no gloss. The product protects the wood against algae, fungi, and moisture.

Oil-Based Clear Varnish for Outdoors

Osmo Natural Oil Stain is oil-based. This ensures that the wood is protected from the inside out and that the surface can continue to breathe. After treatment, the wood is protected against rain and wind. The terrace or fence can then be easily touched up locally with the same product.

Outdoor varnishes are water-based. This means the wood is not well protected against water or cannot breathe properly. This can result in the coating on the wood being less protective and the wood starting to crack or peel. Consequently, you will need to treat the wood again soon.

UV Protection Clear Varnish

Osmo Matte 701 for outdoor use is colorless and contains no color pigments. This means it offers less protection against UV radiation than a product with color pigments. Over time, it will gradually turn grey. This creates a beautiful patina/grey color on the wood. The wood remains protected against moisture and dirt.

Suitable for which types of wood?

In fact, Osmo Natural Oil Stain can be applied to all exterior wood. This includes softwoods such as spruce, larch, and oak, as well as hardwoods such as Douglas fir, Bankirai, and Ipe.

If you are looking for a product with color pigment, please view the products below. The natural oil stain with color pigment provides better protection against UV radiation and thus against graying.

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