Osmo WR Base Coat (4001) is an exterior wood preservative for use on wooden surfaces that require protection against blue stain (EN 152), wood rot (EN 113) and wood-destroying insects (EN 46). It can be used on most exterior wooden surfaces including windows, frames, roller shutters, doors, pergolas, trellis and garden furniture prior to over-coating with a suitable exterior wood oil.

• For a biocide and preservative free alternative to this product, try Osmo Wood Protector (4006)

Please Note: This product is not recommended for use as a basecoat under Osmo UV Protection Oil Natural (429), that is designed to retain the natural, untreated finish of the wood. This product will enhance and darken the wood grain which is the opposite of what the natural UV protection oil is designed to do.

Using this product on rough sawn or featherboard wood will significantly reduce it's coverage.

Wood to be protected must be dimensionally sound and stable and not in direct contact with the ground.

1. Wood surface must be clean, dry and frost-free (moisture content max. 20%) prior to application of Osmo WR Base Coat
2. Clean old microporous stains thoroughly
3. Old paints and lacquers must be completely removed to expose clean, bare wood
4. Degrease bare wooden surfaces with meths if required

Always do a test area before starting any project to assess product suitability and final finish. Stir well before use. Osmo WR Base Coat is ready to use and does not require thinning.

1. Apply WR Base Coat with an Osmo Soft Tip Brush or by dipping or flooding
2. Only spray apply in an enclosed unit and with a suitable spray system
3. Coat the clean, dry and frost-free wood generously
4. Apply to all sides of the timber including sides and end-grain before fitting if possible

Please Note: This product is not for use on wood which comes into direct contact with food or animal feed. Also not for use in living spaces or habitable rooms. Do not use in immediate proximity of any kind of water.