Does anyone know about timber preservatives?

[mcoutts]

Just need to know more about timber preservatives and their effects (if any) on corrosion rates of hot-dipped galvanized bolts in hardwood structures? What is the standard curing time for the hardwood timbers?

 

[EdStainless]

The old ones are all CCA copper cianide compounds. The new ones are based on ACQ Alkaline Copper Quaternary and CA Copper azole . These new treatments must use higher levels of active chemical to get the same effects, and they are more corrosive.
Try these:

http://www.taunton.com/finehomebuilding/pages/h00127.asp

http://www.citw.org/

http://www.wolmanizedwood.com/

There are also treatments that use boron compounds. I like these better than ACQ and CA.

But in any case, good heavy hot dipped galv should be fine. Don't use any Al, and don't use light galv.

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Corrosion never sleeps, but it can be managed.

http://www.trenttube.com/Trent/tech_form.htm