Osmo's WR basecoat is ideal as extra protection for softwood species for the exterior.

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WR basecoat is a clear wood impregnation which serves as a preventive protection against blue stain, rot and insect attack. It 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.

Coverage: 5-6m² per litre

Drying time: 12 hours

Number of coats: 1

Application temperature: Above 5°C


  • Extremely water repellent
  • Resistant to blue stain, rot and insect attack
  • Reduces wood swelling and shrinkage
  • No future application necessary
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