Home Care Exterior Finishes Osmo UV-Protection Oil
Western Red Cedar Cladding finished with Osmo UV-Protection Oil Extra 420 Clear Satin

Osmo UV-Protection Oil / Extra

The high-energy UV rays of the sun destroy the lignin in wood & make it grey over time. Up to now, color pigmented wood finishes could possibly prevent this effect. Osmo UV-Protection Oil is a unique clear wood finish which maintain the wood's natural color and slow the greying process almost invisibly. It contains special ingredients that stall the greying effect by (UV factor) 12 times in comparison to untreated wood when two coats are applied. As top coat on already color treated wood, it prolongs the renovation intervals significantly. Osmo UV-Protection-Oil Extra is furnished with active ingredients to protect the coating against mold, algae and fungal attack.
Ideal for windows, doors, cladding, fencing and other vertically structured joinery (not recommended on flat surfaces such as decking).

Ultimate clear protection for vertical exterior wood against the greying effects of UV damage.

2.5L Can of Osmo UV-Protection Oil Extra 420 Clear Satin
Colors & Sheens
Osmo UV-Protection Oil 410 Clear Satin (Biocide-free) on Spruce
Osmo UV-Protection Oil Extra 420 Clear Satin on Spruce
Advantages
  • Based on natural vegetable oils and waxes.
  • Suitable for vertical wood surfaces that require protection from the suns UV rays.
  • Invisible UV-Protection without changing wood color.
  • Reduces wood swelling and shrinkage & helps to prevent cracking, splitting and warping.
  • Superb durability against weathering & UV.
  • 410 is biocide-free, safe for humans, plants & animals once dry
  • 420 contains biocides to protect wood against mold, algae &fungal attack.
  • Very water and dirt resistant.
  • Micro-porous, breathable finish. Does not crack, peel or flake.
  • Easy to refresh, no sanding or primer necessary.
  • Made in Germany - Conforms to strict German Norms.
Can Sizes 0.125L | 0.75L | 2.50L | 3.00L | 25.00L
Information
  • Approx. coverage: 18 m²/L with one coat.
  • No. of coats: 2 coats.
  • Can be used as base and top coat.
  • Application temperature: +5 °C to 35 °C.
  • Drying time: 12 hrs.
  • Storage: 5 years & longer.
Documentation (410)
Documentation (420)
Application Tools
Osmo Brush icon
Osmo Roller
Osmo

Osmo UV-Protection Oil / Extra is ideal for the protection of all vertical exterior wooden surfaces like Cladding | Garden Furniture | Doors | Windows | Shutters | Fencing | Wooden Houses | Carports | Pergolas plus lots more...

Coverage & Accreditation:
Coverage: 18 m2/L with one coat
Osmo Oil Based Wood Finishes Advantages
Safe for human, animals and plants DIN EN 71.3 Certificate
Osmo UV-Protected -12 Times Last Longer - Tested According to EN 927-6

How to Apply Osmo UV-Protection Oil

Finished surface in 2 days, 2 coats

How-to-apply-stirring-well1

Stir Well

How-to-apply-roller-brush2

Apply thinly

– On Raw or Sanded Wood –
Wait 10 hours illustration - Wood+Care3

Let it Dry

– Normal Climatic Conditions –
How-to-apply-Second-Coat4

Second Coat

– Repeat Steps 1 & 2 –
Wait 12 hours illustration - Wood+Care5

Let it Dry

– Normal Climatic Conditions –
How-to-apply-well-done-Green

Tips:

  • Recommended application: 55 ml/m² per coat.
  • Wet coating can be corrected up to 15 min.
  • Wood surface must be clean, dry and frost-free (moisture content max. 20%).
  • Thoroughly clean or lightly sand old microporous stains or completely remove old varnishes before application.
  • For areas exposed to strong weathering, such as weatherboard, post caps or window sills, please expect significantly shorter renovation intervals.
  • Vertical elements mounted onto horizontal wood should have at least a 15 degree angle. Sharp edges must be rounded (radius > 2 mm).
  • If the greying process has already begun, clean the surface with Osmo Wood Reviver Power Gel and refinish with 2 coats of Osmo UV-Protection-Oil Extra.
  • To achieve the UV protection, it is necessary to apply 2 coats of UV-Protection-Oil Extra. With only one coat on untreated wood, the life of the coating is significantly shorter.
  • Due to high oil content, the coating has a light yellowing effect when used as a top coat on white substrates. Therefore, we recommend using Natural Oil Woodstain 900 White as a top coat in such cases.
  • For new resinous wood species (such as Cedar, Iroko, Teak, Mahogany etc.), please allow approx. three months exposure to the outside elements prior to application.
  • Oak contains a high acid content within its natural tannin and as a result causes the timber to blacken during exposure to cold and moist environments - especially during the winter periods. More frequent care and maintenance is required, particularly in its first couple of years of exposure to the elements, to maintain its decorative appearance.
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