BIOKIL Dual Purpose Wood Preservative Concentrate – Woodworm & Rot Treatment (400g Makes 25L)

WoodZone Dual Purpose Wood Preservative Concentrate is a professional-strength timber treatment designed to protect wood against both wood-boring insects and wood-destroying fungi. Using advanced micro-emulsion technology, this highly concentrated formula delivers superior penetration compared to traditional water-based preservative systems, providing long-lasting protection for internal and external timber.

Supplied as a compact 400g concentrate, each container makes up to 25 litres of ready-to-use preservative, reducing storage requirements, transport costs, and plastic waste. The solvent-free formulation is virtually odourless, non-flammable, and suitable for a wide range of timber preservation projects.

Key Features & Benefits

• Dual-purpose protection – treats both wood-boring insects and fungal decay
• Super concentrate formula – 400g makes up to 25 litres of treatment solution
• Advanced micro-emulsion technology – improved timber penetration
• Protects against woodworm and termites – long-term insect control
• Effective against dry rot and wet rot fungi – prevents timber decay
• Virtually odour-free – suitable for indoor use
• Fully solvent-free – contains no VOCs
• Non-flammable formulation – safer handling and storage
• Quick re-entry time – treated areas can be re-entered after 1 hour
• HSE Approved No. 10445 – professional-grade timber preservation

Typical Applications

• Roof timbers
• Floor joists and structural timber
• Loft spaces and roof voids
• Timber fencing
• Cladding and external timber
• Woodworm treatment projects
• Preventative timber preservation
• Rot treatment and protection

Note: Suitable for internal and external timber that is not in direct ground contact or permanently submerged in water.

Protection Against

• Common Furniture Beetle (Woodworm)
• Deathwatch Beetle
• House Longhorn Beetle
• Termites
• Dry Rot (Serpula lacrymans)
• Wet Rot Fungi
• General Wood-Destroying Fungi

How It Works

The advanced micro-emulsion technology allows active ingredients to penetrate deeply into timber fibres where they provide long-term protection against insect attack and fungal decay.

Unlike traditional emulsified wood preservatives, the formulation forms a stable treatment solution that delivers enhanced penetration and more effective distribution throughout the timber structure. :contentReference[oaicite:0]{index=0}

Mixing Instructions

• Empty one 400g container into a suitable mixing vessel
• Add clean water to make a total volume of 25 litres
• Mix thoroughly before application
• Prepared solution can be stored for up to 6 months if sealed correctly

Application Instructions

• Apply only when temperatures are above 5°C
• Ensure timber is reasonably dry before treatment
• Remove paint, varnish, bark, and surface coatings before application
• Apply by brush or low-pressure spray
• Apply to refusal at approximately 1 litre per 3–4m²
• Alternatively, timber may be immersed for up to 3 minutes

Coverage Guide

Suitable for Bat Roof Spaces

The active ingredients within WoodZone Dual Purpose Wood Preservative are approved for use in roof voids where bats roost when used at the specified application rates.

Treatment must not be carried out while bats are present. Appropriate wildlife authorities should be consulted before commencing treatment.

Active Ingredients

Technical Information

Storage & Safety

Store in a cool, dry place away from food, drink, and animal feed. Keep containers tightly closed when not in use.

Keep people and animals away from treated areas for at least 1 hour or until surfaces are completely dry. Remove or cover fish tanks before treatment and avoid contact with plants, ponds, and watercourses.

Why Choose WoodZone Dual Purpose Wood Preservative?

WoodZone Dual Purpose combines professional-strength insecticidal and fungicidal protection in an economical concentrate that makes up to 25 litres of ready-to-use treatment.

Its advanced micro-emulsion technology provides deeper penetration, long-term timber protection, and improved environmental credentials compared to traditional solvent-based wood preservatives, making it ideal for both remedial and preventative timber treatment projects.