
Osmo Terras-Olie
Osmo Decking Oil is a product based on oils and waxes that creates a protected surface after treatment. The surface is resistant to water, dirt and the sun.
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The best Osmo finishes for Douglas Fir outdoors
The best way to treat Douglas Fir outdoors is with Osmo UV-Beschermingsolie or Landhuisverf, because Douglas Fir has varying hardness between growth rings, so an oil can absorb unevenly if the wood isn't lightly sanded beforehand.


Osmo Decking Oil is a product based on oils and waxes that creates a protected surface after treatment. The surface is resistant to water, dirt and the sun.
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Silk-matt, colourless protection based on natural oils for exterior wood.
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Osmo Natural Oil Stain is an oil and wax-based product that creates a protective surface after treatment. The surface is then resistant to water, dirt, and sunlight.
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Osmo Country Colour is a product based on oils and waxes that creates a protected surface after treatment. The surface is resistant to water and dirt.
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Colourless, satin finish based on natural oils for exterior wood. Contains a special organic anti-slip additive with high density that is evenly distributed in the finish and provides an anti-slip effect when dry.
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Refresh your deck in no time. This bundle contains everything needed to restore your greyed deck to the appearance you want.
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Osmo WR Wood Impregnation 4001 is now Osmo Wood Impregnation WR Aqua 4019 (an improved version).
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The Osmo WPC and BPC Cleaner (Composite Cleaner) is ideal for periodic cleaning of polymer composite surfaces. The Composite Cleaner has a coverage of 10 to 50 m². Use an Osmo Patio Brush with handle or the Osmo Patio and Floor Cleaner to clean the surface. Highly effective, intensive cleaner for removing organic and inorganic contaminants outdoors. Ideal for intensive cleaning of WPC decking, fences, and all other wood-plastic composites outdoors.
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Osmo Transparent Wood Finish 000 is a colorless, semi-gloss wood treatment based on a natural oil base for exterior wood. The Transparent Wood Finish is porous, allowing the wood to breathe and reducing swelling and shrinkage. It is water-repellent and will not crack, chip, or peel. The Transparent Wood Finish penetrates deeply into the wood, smoothing the surface even with a single coat. A primer is not required.
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Highly effective concentrate for cleaning untreated or oiled wood. Quick and easy to use.
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Osmo Primer is suitable for all exterior woodwork requiring a white finish prior to installation. It's ideal for wooden cladding, window frames, fences, garden sheds, pergolas, carports, and gates. Osmo Primer is optimized for professional and, above all, fast application. It is highly drip-resistant and extremely fast-drying, drying in just 3 to 5 hours. This allows both the primer and topcoat to be applied to the wood in a single day. For long-lasting, high-quality protection, a white or light-colored topcoat with Osmo Country House Paint or Osmo Opaque Stain is recommended.
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Thick specialist cleaner developed to clean and refresh greyed exterior wood.
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Osmo Endgrain Wax is ideal for treating the end grains of various outdoor wooden surfaces. By treating the end grains of your wood, you minimize swelling and shrinkage. The treatment also provides excellent protection. Osmo Endgrain Wax can be used on both soft and hard wood types, such as Bankirai, Teak, Massaranduba, Garapa, Pine, Spruce, Douglas Fir, Larch, and Cedar.
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The window and door finish that won't crack, peel, or flake. This opaque, semi-gloss, open-pore wood finish offers high performance and unparalleled durability. Osmo Opaque Wood Paint is UV-resistant, slowing the graying process. This makes it the ideal professional paint for windows, doors, and shutters. It can be applied without sanding, and no primer is required.
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The Osmo Resin Removal Kit is suitable for removing leaking resin from all exterior wood. The kit can be used for resin on both color-treated and colorless wood.
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Extremely weather-resistant and UV-protective wood finish for treating exterior wood. Osmo Opaque Stain is a breathable and water-repellent product. Once dry, the stain is safe for humans, animals, and plants, and is also suitable for treating children's toys such as playground equipment. Osmo Opaque Stain is suitable for treating almost all exterior wood, such as facades, fences, gates, garden sheds, garden furniture, and carports. The Opaque Stain is not suitable for patios and decking. Osmo Opaque Stain dries after just 3 to 4 hours. This means the wood can be treated with two coats in one day.
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Finish Douglas Fir outdoors with Osmo UV-Beschermingsolie, Natuurlijke Olie-Beits or Landhuisverf on facades and fences, and with Osmo Terras-Olie on a terrace. Douglas Fir is a softwood with a warm, orange-brown heartwood. The growth rings differ in hardness, so an oil can penetrate unevenly if you do not sand the wood lightly.
For transparent protection on vertical Douglas Fir, choose UV-Beschermingsolie: first one coat of 427 Douglas, a light colour that keeps Douglas Fir light, followed by one coat of 420 clear. Natuurlijke Olie-Beits is both primer and top coat and suitable for all outdoor wood; apply two coats. For an opaque colour, there is Landhuisverf. Also see facade cladding and fence.
UV-Beschermingsolie is not intended for horizontal wood. Treat a Douglas Fir terrace with Terras-Olie 004 Douglas, optionally with Antislip Terras-Olie 430 as a third coat for extra grip. Also see terrace.
Sand Douglas Fir lightly so the oil penetrates evenly. Let new wood weather for at least six weeks. First remove the grey from weathered wood with Power-Gel; never use a pressure washer. Read more in treating Douglas Fir. One litre of UV-Beschermingsolie covers about 18 m² per coat, and one litre of Natuurlijke Olie-Beits about 26 m². Rinse used cloths with water afterwards, as oily cloths can self-ignite.
The side exposed to sun and rain weathers fastest and needs attention first. When renovating, apply no more than one new coat. If you deliberately want a grey look, choose Vergrijzingsbeits, which gives an even silver-grey colour straight away. Always test first in an inconspicuous spot on previously treated wood.
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