Tanalith® E

Tanalith® E is a water-based, high pressure wood preservative that is industrially applied. When impregnated into the timber through a high pressure process, Tanalith® E components bond with the wood structure and cannot easily be removed, helping to significantly extend its service life.

A unique combination of copper and organic biocides, Tanalith® E has over three decades of real-world performance and testing across numerous aggressive, independent field trials.

Why Tanalith® E?

30 years proven performance

The first Tanalith® E formulation was sold in Scandinavia in 1992 and since this time has continued to develop in line with market needs.

BPR authorised

Tanalith® E has BPR (Biocidal Products Regulation) authorisation, passing all necessary environmental, human and animal health risk assessments.

BARamine® – unique application technology

The award winning BARamine® application technology helps to ensure the long-term performance of Tanalith® E treated timbers.


The Ideal high-pressure treatment for:

Timber treated with Tanalith® E  is suitable for Use Classes 1-4. It can be used in internal and external building applications and outdoors, both in ground contact and above the ground, without any need for further protection. To help you specify treated timber, we have produced the Tanalised® Timber Smart Guidefind out more

Colour Technologies

Colour Techno


Tanalith® E treated timbers have an initial pale green colour as standard and upon external exposure, will slowly weather to a warm, honey brown and, in the longer-term to a natural silver grey colour. To add colour to the treated timbers, we offer Tanatone® and Tanalith® Lifestyle.

Nationally recognised

Tanalith® E products are approved by the following nationally recognised wood preservation schemes:

Tanalised® Timber


Timber treated with Tanalith® E is trademarked as Tanalised® timber. Over the years, due to the success of Tanalith® E, the word ‘Tanalised’ has been used to refer to treated timber. Other treated timbers may not offer the same long-term performance credentials as Tanalised® timber. So if you are planning a project, make sure that the timber you are specifying has genuinely been treated with Tanalith® E wood preservative.