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Lignum Pro Gel Fungicide and Insecticide 300ML

£13.00 Ex VAT
£15.60 Inc VAT

Deep penetrating ready to use gel that prevents attack by wood boring insects and wood rotting fungi.

Fungicide and Insecticide Gel - Cartridge

This professional dual purpose Fungicide and Insecticide gel eradicates and prevents the re-infestation of wood boring insects as well as protecting timber against wood destroying fungi.

The gel, which is similar in consistency to mayonnaise, penetrates deep into the timber. The active ingredients – an insecticide and fungicide - then get to work eradicating and preventing attack by the house longhorn beetle, termites and other woodboring insects. Lignum Pro Gel is effective against all life stages of wood boring insects. The fungicide is highly effective and provides timber with lasting protection from a range of wood rotting fungi.

This superior professional product is easy to use, has no odour, is non staining, non flammable and can be applied by injection or brush. It is a great option when conventional fluid methods may not be suitable. This includes when the timber is prone to decay such as wall plates, joists and rafter ends, gutter boards, soffits, lintels, large cross section beams particularly in old buildings and timbers permanently in contact with the ground.

How Does the Dual Treatment Gel Work

The active ingredients in the gel are in high concentrations and include an insecticide that is highly effective against a wide range of wood boring insects, and a fungicide, which has excellent efficacy against fungal decay. IPBC is added to protect against a range of wood staining fungi.

How to Use Dual Treatment Gel

Start by cleaning the target wood, ensuring it is free from all contaminants. You can then apply the gel either by brush or injection. Injection into the timber can also be used and is particularly recommended when treating Death Watch Beetle.

The product does not have a finish once dry, but it is advisable to test it on a small area to ensure the finish is as expected. The gel can be over painted with any wood finish once dry with no losses due to evaporation.

Note: After two years the product should be re-tested every 6 months to ensure active ingredient levels are within specification.


Preventative: 100 – 200 ml/m2 (1 Litre per 5 – 10 m2)
Curative: 250 ml/m2 (1 Litre per 4 m2)
Injection: 30 kg/m3


Further Reading

Read our guides on how to treat woodworm. You can also browse our full range of timber treatments.


  • Eradicates wood boring insects and prevents re-infestation
  • Protects against wood rotting fungi
  • BS EN Certification
  • No drips, no odour, does not evaporate.
  • Excellent adhesion and penetration into wood.
  • Excellent efficacy
  • No re-entry time
  • Does not stain or discolour wood
  • Supports any subsequent finishing
  • Non-flammable
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