Thursday, 17 December 2009

Anti-corrosion Wood Type

"Wood is the use of pressurized antiseptic principle, the standard material into the pressure tank, into the wood preservatives, by vacuum pressure, so that penetration of wood preservatives to the inner timber, and then pumping out the tank dry vacuum formed. Its superior corrosion resistance can be lasting protection of wood, to extend the useful life of wood. in Europe and the United States and other countries, mandatory under the law must be used outdoor wood antiseptic timber. antiseptic timber market price according to different varieties of wood are different.
   

      
1, the Nordic densiflora.

      
Quality of Pinus sylvestris, after a special anti-corrosion treatment with anti-rot, anti-termite, anti-fungal effect. Dedicated to the outdoor environment, and can be used directly with the water, soil exposure environment, is the outdoor landscape of wooden flooring, fence, bridge, Plank Road, and other wooden material of choice for comedy.

      
2, Russia, Pinus sylvestris.

      
Russia Pinus sylvestris directly using high-pressure infiltration method to do full-face anti-corrosion treatment, its excellent mechanical performance and a beautiful texture highly recommended by designers and engineers. Russia's anti-corrosion materials Pinus sylvestris very wide range of applications, wood Plank Road, Pavilion Court platforms, pavilions, corridors Chinese Room, flower fences, trails terminal, a children's play area, flower bed, litter bins, outdoor furniture and outdoor environment, hydrophilic environment and indoor and outdoor structures such projects can be used. Due to its unique anti-corrosion technology, all of the architectural works can be long-term preservation.

     
3, the western red cedar.

       
Western Red Cedar is a wood preservative in North America the highest level. It is distinguished from the natural growth of anti-corrosion ability of a substance called Thujaplicins of alcohol; another red cedar can be extracted in an acidic substance called Thujic to ensure that the timber will not be insects, erosion, do not need manual anti-corrosion and stress management. Red cedar excellent stability, long life is not easy deformation. It also applies to other high humidity environments, such as the sauna room, bathroom and kitchen for the production of cabinets, wardrobe, etc., anti-cockroaches, moth. Red cedar due to chemical treatment and without making pure natural features, in the global market is most welcome.

     
4, ponderosa (southern pine).

      
Ponderosa Pine (Southern Pine) its intensity and the proportion of the best, with excellent nail-holding ability is the highest intensity in the west cork. After dealing with corrosion and stress the yellow cedar, wood preservatives can reach the core. During the installation process can be cut, without cross-section painted anti-corrosion coatings. Products can be used in seawater or river water, an absolute no corrosion.

      
Internationally accepted anti-corrosion treatment of the wood is the primary means: using a water-based preservatives should not be dissolved, in the enclosed vacuum tank pressure on the timber, while the preservative into the wood fiber. After the pressure treated wood, increasing reliability, preservatives can effectively prevent the mildew, termites and insects to the timber violations. So that the treated wood for outdoor harsh environments with long-term use of the excellent corrosion resistance.

       
Over the past three decades, anti-corrosion treatment methods mainly based CCA. The main chemical constituents of chromated copper arsenate (Chromated Copper Aarsenate), it is clean, odorless, treated wood surface can be lacquered. Is the world's recognized as an effective anti-corrosion treatment. However, in recent years in North America found that some people have mild allergies to reflect on the CCA, for which the United States has provided no longer allowed to use (in industrial and housing use of the foundation, except); Canada at the end of 2003, promulgated and implemented similar legislation, a total ban on the use of human contact.

       
At present, another came into being ACQ preservative treatment began to replace the CCA, into the mainstream market. ACQ (Alkaline Copper Quaternary) of the main chemical ingredient of alkyl ammonium compounds of copper. It does not arsenic, chromium, arsenic and other toxic chemicals, no adverse effects on the environment and do not fish and plants will harm people and livestock. This approach in the use of human security, better than the CCA is now U.S. Environmental Protection Agency (EPA) recognized as the world's most efficient, environmentally-friendly anti-corrosion treatment of wood in North America and Europe widely promoted. However, anti-corrosion treatment on the ACQ in terms of costs by nearly 20% higher than the CCA.

      
Judging from the current domestic market, this two kinds of wood preservative treatment should co-exist for some time. However, long-term perspective ACQ treated with preservatives will be the future trend of development.