Cuprinol Woodworm Killer

Kills and protects against beetle-larvae

Cuprinol Woodworm Killer
  • Kills wood-boring beetle larvae
  • Deep penetration ensures effective protection for years to come

Cuprinol Woodworm Killer (F) kills all types of wood-boring beetle larvae. Its deep penetration ensures effective protection for years to come. This low odour formula has been specially developed with low aromatic solvents to make it more pleasant and convenient to use.

How much do you need?

Eradication of insect attack including House Longhorn Beetle: Use a minimum of 1 litre per 3-4 sq. metres.

Replacement timbers liable to House Longhorn attack: Use a minimum of 1 litre per 3 sq. metres.

Replacement timbers in woodworm eradication work: Use a minimum of 1 litre per 4 sq. metres. Rough sawn timber will absorb up to twice as much as planed wood.

Coverage can vary depending on application method and the condition and nature of the surface.

Pack sizes

250ml, 500ml, 1L, 2.5L & 5L

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Usage guide

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Bare Wood: Flood surfaces with 2 or 3 brush coats. Pay particular attention to endgrain, corners, joints, crevices, etc. In severe cases, also inject into flight holes 7-10cm (3-4ins) apart and repeat treatment. Re-treat surfaces cut after treatment. Polished Wood: Inject into flight holes 5-7cm (2-3ins) apart. Flood into joints. Wipe off surplus. In severe cases repeat treatment. Fluid does not penetrate polished surfaces. Wax polished surfaces will normally require re-waxing after treatment. Cuprinol Woodworm Killer (F) is also available in small tins. Treat all replacement timber.


Most finishes such as oil or water based paints, woodstains, varnishes, polishes etc. can be applied after the fluid has dried (normally 2-5 days for brush, spray or 3 minute dip). Some finishes such as 2-part lacquers may require a longer drying: a test application is recommended.


Clean equipment with white spirit. Remove as much material as possible from brushes before cleaning. For best results use Polycell Brush Cleaner. Do not use or store in extremes of temperature.