One Coat Only HS Plus


Osmo One Coat Only HS Plus is a natural oil based wood finish that colors and protects exterior wood with only a single coat. Ideal for timber framing, sheds, fences, and siding. The finish penetrates the surface and bonds with the wood fibers to produce a durable water repellent surface which slowly weathers away over time. Once the colour becomes faded after several years, simply recoat with no sanding required.

One can covers 2-3x as far as conventional exterior wood finishes and only one coat is required – saving time and money! 

  • One coat application 
  • Coverage 2-3x as far as conventional exterior wood stains
  • Microporous, breathable finish that allows the wood to breathe and reduces the risk of swelling and shrinkage. 
  • Extremely weather and UV resistant
  • Highly water repellent, prevents wood swelling
  • Easy to apply and renew, with no sanding or primer necessary
  • When dry, the finish is safe for humans, animals and plants and is suitable for children’s toys as per EN 71.3 (European norm) and DIN 53160 (German industrial norm). 

9212 Silver Poplar
9221 Pine
9235 Red Cedar
9236 Larch
9241 Oak
9261 Walnut
9262 Teak
9264 Rosewood
9271 Ebony
9203 Basalt Grey
9203 Basalt grey
9205 Patina
9206 Light Oak
9207 Quartz Grey

  • Only one coat is required – saves time and money
  • Doubled coverage due to high solids content
  • Safe for animals and plants once dry
  • Ideal for children’s exterior play sets and garden furniture
  • Natural wood grain remains visible
  • Dirt, Weather and UV resistant
  • Reduces wood swelling and shrinkage
  • Microporous, breathable finish does not crack, peel or flake
  • No sanding necessary for future applications
Application Temp.+5°C to 35°C
Colours9211 White Spruce, 9212 Silver Poplar, 9221 Pine, 9232 Mahogany, 9234 Scandinavian Red, 9235 Red Cedar, 9236 Larch, 9241 Oak, 9242 Fir Green, 9261 Walnut, 9262 Teak, 9264 Rosewood, 9271 Ebony
Approx. Coverage26m²/L (280 ft2/L) with one coat
Approx. Dry Time12 hrs
Number of Coats1 coat
Sizes750mL, 2.5L, Sample Sachet (5mL)

  1. Apply Osmo One Coat Only with an brush
  2. Apply one thin coat evenly, and allow to dry for approximately 12 hours with good ventilation

Tip:For windows or other surfaces exposed to weathering, apply a coat of Osmo UV Protection Oil Extra over One Coat HS Plus when fully dry. This will give the surface a slightly satin appearance and improved durability of the finish. If possible apply to all sides of the wood.

Product Information Sheet MSDS Full Declaration