Wood preservative Drewnochron Impregnat extra, dark walnut, 2.5 L

Drewnochron Impregnat extra, dark walnut, 2.5 L is a pigmented wood preservative formulated to penetrate and protect interior and exterior timber. The product is supplied in a 2.5 litre container and is tinted in a dark walnut shade to provide both protective and decorative effects. It is intended for application on surfaces such as fences, garden furniture, cladding and structural wood, where it penetrates the wood structure to reduce moisture uptake and help prevent biological degradation and staining while maintaining visible grain and colour depth.

Advantages

The formulation provides deep penetration into wood fibres to improve resistance to moisture and to limit swelling and shrinkage. The pigmented finish offers uniform colouration and UV protection to slow colour fading. Designed for both exterior and interior use, the product is compatible with a variety of timber species and leaves a breathable coating that does not form a film, allowing the wood to exchange moisture naturally. The 2.5 L volume is suitable for medium-sized projects and touch-up applications.

Suitable for

• Exterior fences and gates
• Garden furniture and seating
• Timber cladding and siding
• Structural timber elements and beams
• Interior wooden panels and joinery where tinted protection is desired

Key specifications

• Container volume: 2.5 litres
• Finish type: pigmented impregnating preservative
• Colour: dark walnut tint
• Application: brush, roller or low-pressure spray
• Substrate: untreated or previously coated wood (follow surface preparation instructions)
• Breathability: permeable coating that allows moisture exchange

How to use

Ensure the wood surface is dry, clean and free of dust, loose fibres, mould or existing flaking finishes. Stir the product thoroughly before use to ensure uniform colour. Apply evenly with a brush, roller or low-pressure sprayer following the wood grain. For new or highly absorbent wood, apply a generous first coat to achieve penetration; allow recommended drying time between coats and apply a second coat where greater protection or deeper colour is required. Avoid application in temperatures below the manufacturer’s recommended range or during rain; protect treated surfaces until fully dry.

Usage recommendations

Perform a small test application on a discreet area to confirm colour and absorption. For best long-term protection, reapply at intervals appropriate to exposure conditions and inspect timber regularly for signs of wear. Store the product in a cool, frost-free place and follow local disposal regulations for any leftover material and packaging.