TANALISED treated timber

TANALITH TREATED TIMBER SUMMARY OF BENEFITS



     Can be used in both exterior, in-ground and interior applications.


     Non-oily.


     Odourless.


     Paint or varnishes may be applied when the timber is dry.


     May be glued once it is dry, whithout loss of strength.


     Safe for users, owners and the environment if applied correctly.


     Tanalith treated timber in interior and exterior, nonground contact applications have a life-time guarantee.


Answers to commonly asked questions

Q. Why should timber be preserved? Q. What is Tanalith?

Timber is a plentiful and economical building construction material, which comes from a renewable resource. However, timber is subject to attack by insects (such as termites) and decay by fungi and micro-organisms.

This is especially important in hot, humid climates or wherever timber comes into contact with the ground or water.

Tanalith is a formulation of chromated copper arsenate, a formulation found to be highly effective as a wood preservative. Each of these three elements is important to its overall performance. Copper is an effective fungicide. Chromium plays an important part in fixing the preservative to the wood fibre.

The arsenic in Tanalith is a naturally occurring trace element in the soil, water and air. When it is fixed in the wood cells as copper arsenate and chrome arsenate, it is toxic to wood-destroying insects and fungi but when used properly it is not harmful to people or animals.
Q. What is Tanalith treatment? Q. What determines how much Tanalith will be used to treat timber?

Tanalith treatment is a process by which chemical preservatives are forced deep into the timber's cells in a hermetically sealed cylinder under a vacuum pressure process. Pressure treatment is the most effective way of protecting timber. Brush-on treatment, although providing protection, requires on-going periodical re-application to maintain effectiveness.

The end use of the product determines how much preservative will be used; i.e. in-ground contact or above ground contact.

The South African Bureau of Standards (SABS) specification 1288:1994 describes the minimum treatment specifications which will ensure adequate protection.
Q. Is Tanalith treated timber safe? Q. How long will Tanalith treated timber last?

Yes - The Tanalith preservative protects timber from fungi and insects, but because it is fixed in the timber it is safe for plants, animals and humans. It will not wash out.

In the absence of treatment, tests have shown that Radiata pine, which is commonly used in construction, has an average life in ground contact of 1.8 to 3.6 years. In contrast wood treated with Tanalith which was installed as far back as the 1930's is still in use and in a serviceable condition today.

Coastchem warrants that structural timber that has been correctly treated with Coastchem's Tanalith preservative, will outlast the user and will be immune to wood destroying insects and decay.

This warranty is limited to structural timber used within South Africa which has been treated in accordance with SABS specification 1288 and Code of Practice 05 requirements and which is only used in interior or exterior, non~groundcontact applications (H2, H3 hazard classes). This warranty excludes damage caused by Carpenter bees.
Q. Where is Tanalith treatment used? Q. Will Tanalith used in my backyard decks leach out?

Tanalith timber is used primarily outdoors wherever timber building components come into contact with the ground or are subject to the weather and moisture - in decks, marinas, power poles, mine shafts, bridges, highway sound barriers, cooling towers, agricultural stakes, decks, fences, gazebos, outdoor lighting fixtures, playground equipment, in landscape architecture, vineyards and in piling applications including erosion control of beaches.

Tanalith treatment may also be used in indoor applications where treated wood is required, for example: sub-floor framing, bottom plates etc. Tanalith treated timber should not be used in applications such as countertops where it will come into contact with food or drinking water. It is also not recommended for the treatment of bird cages, beehives or fish ponds.

No - A unique process occurs within timber during and shortly after the pressure treating process, which fixes the Tanalith so it is virtually completely insoluble. Leaching is so low that the finished product does not pose a threat to people, pets or plants.
Q. What are the safe handling procedures for Tanalith treated timber? Q. Can I paint Tanalith treated timber?

Wear gloves to help avoid splinters. Cuts and abrasions should be protected from sawdust whilst sawing or machining timber. Wash hands and face free of sawdust before meals and smoking. Food and drink should not be left exposed to wood dust. When sawing and machining treated wood, wear a dust mask. Whenever possible, these operations should be performed outdoors to avoid indoor accumulations of sawdust.

When power-sawing and machining, wear goggles to protect eyes from flying particles. Sanding operations should be performed in well-ventilated areas. Gloves and overalls in high dust situations are also recommended. Avoid handling or machining freshly treated wet timber.

Dry Tanalith treated Timber can be painted or stained in the same manner as untreated timber. Painting or staining is recommended to minimise splitting, cracking and weathering and should be applied as soon as possible after construction.

If the timber is not surface coated, the pale green/colour of most Tanalith treated timbers may fade or discolour after several years of weathering.
Q. What type of nails and fasteners should be used for Tanalith treated timber? Q. Does Tanalith Timber cause cancer in humans?

Hot-dipped galvanised or stainless steel nails or screws and fasteners should be used to ensure maximum performance. Use screws with superior holding power, either hot-dipped galvanised or electroplated with a polymer coating. Such fasteners ensure permanence and prevent corrosion, which stains both wood and its finishes.

In structural applications, where a long service life is required, stainless steel, silicon, bronze or copper fasteners are recommended.

Tanalith treated timber has never been shown to cause cancer in humans nor has it been shown to cause cancer in animals as a result of experimental investigation under extreme laboratory conditidns.
Q. Is Tanalith treated timber suitable for playground use? Q. Why is Tanalith treated timber an ideal replacement for aluminium, plastic, concrete and steel?

Timber that has been pressure treated with Tanalithis widely used for playground equipment. In recent years, tests have been conducted to try to determine whether children who lick their hands after playing on Tanalith treated playground equipment would be exposing themselves to any chemical risk.

Data collected by the California Department of Health Services led Consultants in Occupational Health and Epidermiology to consider this potential riskto be negligible and equated it to the same risk as a child might incur from playing in the sunlight for the same length of time.

Similar tests by health authorities in Australia have demonstrated that there is no risk of arsenic poisoning.

Tanalithtreated timber is the most suitable choice in applications where durability, strength and appearance are important. In most cases, it will result in reduced costs and easier installation. It will also result in reduced air and water pollution and reduced dependence on non-renewable resources.

There is an added benefit -timber preservation for domestic, commercial and industrial applications reduces the strain on the nations' forests for additional timber building products and extends the life of timbers used.
Q. How can I protect my Tanalith treated timber from the weather? Download all your F.A.Q. below

Although Tanalised timber is protected against woodboring insects, termites and decay, it is not protected against the effects of the weather unless it is painted or coated. However, brush-on coatings have a limited life and require re-application. A more permanent solution is found by including a water-repellent in the Tanalith pressure treatment process.

This is in the form of WEATHERWOOD. Weatherwood/Tanalith is ideal for the treatment of decking, lattice panels, fences, paling etc where the benefits of a water-repellent are needed.

    
             (1.36 meg.)

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