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TANALISED Timber is safe to use for structures in and around children’s play areas. With regard to any concerns that the children may ‘chew’ or ‘eat’ the treated timber, we have to conduct safety studies to demonstrate safe use of our products as part of their approval process.

Is TANALITH toxic?

I am a Chemistry Technician by trade and my advice to you is that yes the Tanalith ‘E’ treated wood should be okay to use. This is because (unlike traditional treatments) Tanalith ‘E’ does NOT contain Chromium or Arsenic compounds-it contains organic biocides which are generally much safer.

Does TANALITH contain arsenic?

Tanalith ‘E’ no longer contains arsenic, but does contain Copper and organic bio degradeable biocides. Not a good idea to burn on an open fire, but safer on a closed woodburner. However it will still produce pollutants when burnt.


TANALITH E is a water based wood preservative that contains copper and proven organic biocides. When impregnated into the timber the preservative components bond with the wood structure and cannot easily be removed. TANATONE treated timber has a brown colouration as opposed to the traditional TANALITH green.

What does Tanalised mean?

Tanalised timber, or pressure treated timber, are two names given to describe the same process; in which timber undergoes a pressurised chemical treatment to preserve the wood. All of Suregreen’s softwood timber has been tanalised treated to UC3 or UC4 to ensure they are protected for many years.

Is Tanalith E Class 4?

Use Class 3 uncoated – external timbers used above ground contact and uncoated. Use Class 4 – external timbers used in ground or fresh water contact. TANALITH E pressure treated timbers can be produced for any above Use Classes.

Is Tanalised the same as pressure treated?

The two terms used are describing exactly the same timber treatment: Tanalised is actually a trademark, as is ‘Tanalith E’ which you will see sometimes. Pressure treatment is the process carried out using ‘Tanalith E’ or similar.

Can you burn Tanalised wood?

“Timber treated with preservative should never be used as firewood in a woodburner, or even on a bonfire. “Tanalised timber releases toxic emissions into the atmosphere and produces toxic ash.

Can you burn treated wood after 10 years?

WILSON: Burning it is always a problem. Homeowners should never burn any type of pressure- treated wood or preservative-treated wood under any circumstances. The chemicals that are in the most common pressure-treated wood are heavy metals: chromium, copper, and arsenic. Those 3 chemicals may become airborne.

What do you need to know about Tanalith E?

Tanalith ® E is also independently verified by Ecospecifier Global as likely to contribute to the achievement of Green Building rating credits. Applications – Poles, General construction, decking, fencing, garden, leisure and playground timbers.

What does Tanalith E preservative do for wood?

Tanalith® E preservative is a copper-based formulation for the protection of wood and timber products in general outdoor and ground contact use. It is particularly suitable for treatment of wood where frequent and direct human contact is expected such as decking and play equipment.

What are the ingredients in Tanalith E-Lonza wood protection?

Active ingredients: 16.1% w/v (12.4% w/w) copper (Cu) present as a cupric carbonate ethanolamine complex, 0.64% w/v (0.50% w/w) tebuconazole. Formulation: Aqueous based solution concentrate, which forms a stable solution when mixed with water.

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