Osmo WR Base Coat 4001
Prices From £20.39 to £51.30

5.0 3
Manufacturer: Osmo
Availability: Out of stock
SKU: Os/4001/2.5
Clear base coat with algae protection

The special preventive wood impregnation against moisture!

Ideal as extra protection for softwood species for the exterior. A clear wood impregnation which serves as a preventive protection against blue stain, rot and insect attack. Penetrates deeply into the wood - prevents swelling and shrinkage and is extremely water repellent with a very low odour during application and is completely odourless when dry.

  • Clear base coat, for exterior use
  • Especially recommended for wood not in contact with the ground, windows, cladding, garden furniture
  • Extremely water-repellent, reduces swelling and shrinkage
  • Resistant to blue stain, rot and insect attack
  • Ideal primer for oil-based finishes (such as One Coat Only, UV-Protection Oil and Country Colour)
  • vailable in 0.75 and 2.5 litre drums
  • Approx. coverage: 5-6m²/L with one coat


  • WR Base Coat is not a wood finish and is a base coat only. A finishing product from the Osmo range is required within three months.
  • If possible, although not essential; apply to all sides of the wood to give the strongest protection. Wipe excess from edges with a dry cloth before leaving to dry.
  • Some applications may raise the wood's grain, if neccessary de-nib to smoothen the surface.
  • Note: 4005 WR Base Coat Aqua is discontinued from 2016 and is superceded with an improved oil-based version 4001 WR Base Coat.

*Use biocides safely! Always read the label and product information before use.

 WR Base Coat Product Information

 WR Base Coat Safety Data


Osmo WR base coat
Perfect production,great sales staff and communication
Valdas | 03/12/2021
Great range and prices with low delivery charges and speedy delivery (even in the current circumstances).
Mr | 16/05/2020
Quick delivery, good range of products and a good price on the Osmo wood protection I bought
William | 11/04/2020