Copper Azole Treated Timber
Micronized copper azole penetrates into and remains in pressure treated wood for a long time.
Copper azole treated timber. However some preservative may migrate from the pressure treated wood into surrounding soil over time and there may be incidental contact with skin during construction or use. However it is not approved at this time for s ൡltwater immersion. Copper azole treatments contain copper boric acid and tebuconazole type b does not contain boric acid. The preservative penetrates the wood s cellular structure giving prowood lumber long lasting resistance to decay and termites.
The awpa standard retention for ca b is 0 10 lb ft 3 for above ground applications and 0 21 lb ft 3 for ground contact applications. Copper azole and alkaline copper quaternary treatments both contain a fungicide. Pressure treated wood has gone through a process that uses high pressure to force a solution of water and preservative agents deep into the lumber to help extend its useful lifespan. Micronized copper or copper azole treatment of wood is the modern replacement for chromiated copper arsenic treatment.
For help selecting the proper type of treated wood for any setting consider consulting the primary standard setting body for treated wood the american wood protection association awpa. Less copper came off on wipes after copper azole ca and micronized copper azole mca treated boards were weathered for about a year. 3 of 4 date of issue. Follow the safe practices listed below when working with pressure treated wood.
The active ingredients commonly used in treated wood are alkaline copper quaternary acq copper azole ca or micronized copper azole mca. Copper azole is registered for a variety uses above and below ground as well as in freshwater and marine decking applications. The copper deters insects and the fungicide prevents soil rotting the lumber. Precautions for use continued personal protection for normal work on dry treated wood a dust mask and goggles should be worn as protection from wood dust when machining or sawing.
Clean odorless non staining and non irritating prowood mca micronized copper azole treated lumber is safe for humans animals and the environment. 17 consider using a tablecloth on picnic tables made from treated wood to reduce skin and food contact. Copper azole treated wood is marketed widely under the preserve ca and wolmanized brands in north america and the tanalith brand across europe and other international markets. Cca treated wood remains the best choice for marine piling seawalls and other applications exposed to salt對water organisms 爀屲break apart.
Material safety information copper azole treated wood products page. Ca is a water based preservative that can be cleaned and painted. As with any fungicide treated materials the lumber should be handled with gloves as well as a dust mask when sawing sanding or machining the lumber.