Antiseptic material treatment agent:
Chromium arsenate (CCA)
â— Currently, CCA is the most widely used antiseptic in the United States, the full name of Chromated Copper Arsenate. Approved by AWPA, it can be used effectively in a variety of situations, ranging from seawater exposure to residential closures that require careful handling. The effectiveness of CCA in expelling Formosa termites is also significant.
Borate (B2 O3)
â— Boron is B2O3, and the commonly used antiseptic treatment is Disodium Octoborate Tetrahydrate (DOT).
Note: 1. The American Standards Association (AWPA) recognized the commodity standard grade C-3 including the B2O3 (boron) preservative treatment level against the control of termite infestation (especially against Formosa termites) with a content of 0.17 pcf. AWPA approved, used to combat Formosa termites, with a boron content of 0.28 pcf, was approved by the National Inspection Report (NER) in September 2000.
2. The treatment of borate is not a fixed treatment, so AWPA recognizes that borate cannot be used in contact with the ground and must be kept away from water.
Zinc ammonia arsenate (ACZA)
â— It was first used in western softwood (douglas fir, hem-firs, etc.)
Copper element BIS (ethane group) (CDDC)
â— Approved but not currently used.
Alkyl copper ammonium compound (ACQ, Alkaline Copper Quaternary )
â— The latest development of the model is D-Type, the trade name is Dura-Guard, arsenic-free, chrome-free
(As free, Cr free) does not cause acidification of the soil. It is a new type of environmentally friendly agent, but it is not recommended for use in seawater and sleepers.
CuAZ (set endurance E and set endurance CY)
â— A new standard wood preservative similar to ACQ.
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