Treatment

Risk class	Conditions of use	Biological risks	Product penetration
1	Wood always dry	Insects	2 mm
2	Dry wood on which the surface is temporarily wet	Fungi on surface and insects	2 mm
3	Wood subject to alternating wet and dry periods	Rot and insects	Whole of the wet zone that is not naturally durable
4	Wood constantly wet in all or part of its volume	Rot and insects	Whole of the wet zone that is not naturally durable
5	Wood in contact with water	Rot and insects	Whole of the wet zone that is not naturally durable

DIPPING

Fungicidal treatment
This dipping process is applied to maritime pine. It prevents and avoids formation of a fungus that colours the wood.Le traitement anti-bleu
Class II treatment
For use in construction, and on frames in particular. The wood is Class II treated.
This has an insecticide or even fungicidal effect.
The treatment may be applied by dipping, with the peripheral zone of the wood being impregnated by capillarity.
The product can also be sprayed on the surface of the wood. This spraying is performed in an enclosed space (a tunnel).
The product can also be brushed on.

DRYING
The majority of Landes pine structural wood is dried artificially in kilns.
The purpose of this technique is to limit moisture to less than 18% to improve dimensional stability, mechanical strength and aesthetic appearance, while avoiding any twisting, warping, stains or bending.
Kiln drying is also a recognised method for sterilising wood and avoiding the transfer of unwanted micro-organisms or the appearance of a bluish tint.

ISPM15 TREATMENT
International Standard for Phytosanitary Measures N°15 regulating wood packaging material has been adopted. The aim of the standard is to achieve a significant reduction in dissemination of harmful organisms through trade. The ISPN standard N°15 can be viewed on the website www.ippc.int.

Wood packaging is any packaging material such as pallets, wedges, boxes, packaging boards, drums, trays, loading trays, boxes and skid platforms made partly or entirely of rough-sawn wood of any coniferous or deciduous species, and of a thickness of more than 6mm.
To comply with ISPN standard N°15, packaging must undergo one of the approved treatments provided for in Annex I to ISPN15, which is to say:

Heat treatment to a core temperature of 56°C for at least 30 minutes.
Methyl bromide fumigation subject to certain concentration, duration and temperature conditions.

These products bear a label corresponding to the specifications provided for in Annex II to ISPN N°15: the IPPC logo, two-letter ISO country code, producer identification code, ID code of the approved measure used (HT or MB) and DB if removal of the bark is required.

AUTOCLAVE TREATMENT
The impregnation capacity of maritime pine enables it to reach the highest durability standards in the EN 335 international standards.
It is used for a wide range of applications: decking, cladding, urban furnishings…
It is renowned for its aesthetic qualities, for fitting into its environment and for its stability over time.
Treatment products undergo checks and are chosen for their performance and low impact on the environment. The process employed has successive vacuum, pressure and vacuum stages. The treated wood has moisture of less than 25%. Once in a vacuum, the autoclave is filled by suction of the treatment solution. Pressure of between 8 and 12 bars is then applied. The wood cells are thus saturated with the solution. The last vacuum phase removes the excess treatment product. The wood is then air dried before being removed from the autoclave.

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