Except for a few natural anticorrosive woods, the current industry refers to the coniferous wood treated by vacuum pressure as anticorrosive wood, and can be used for 20-50 years in the natural environment; other methods such as painting, soaking, etc. are symptomatic treatments It does not cure the root cause and cannot achieve the true anti-corrosion purpose;
Changsha preservative wood sales
Distinguishing method: After sawing with dry wood pressure treatment, some preservatives in the sapwood will penetrate 85%-100% (but oil and heartwood will be more difficult to penetrate); after wet wood directly pressure-treated wood is sawn, More than 50% of the cross section shows the natural color of the wood (more than 50mm is particularly serious), which cannot effectively penetrate the wood cells, and the brushing and soaking is only a similar coloring effect, which cannot be called a real anti-corrosive wood; ACQ pressurized wood is dark green, and CCA plus Pressed wood is grayish green. It is worth noting that most of the domestic materials will choose non-dried plates for corrosion protection, the main reasons are:
First, there is no drying equipment, no drying concept.
Second, speed up the production cycle.
Third, one less process can reduce a lot of costs.
Fourth, some domestic design units are seriously out of touch with the industry, designing some non-standard works, and the engineering party has no ordering habits, and the delivery time is often very short. In order to c