The older CCA held up better, but it was also nasty stuff. I don't think it was an environmental thing as much as a personal health/safety issue.
It had arcenic in it, so breathing the dust day in and day out is obviously bad for you.
I heard stories of guys' hands getting really ate up from it too, but nothing to substantiate that.
I did a big project during the big switch to ACQ. It was all still green then. At the time, there was very little fastner support for ACQ. Basically, nobody knew what you were talking about when you asked for stainless, or hot dipped galv fasteners, or brackets, or bolts...
Of course now, the right stuff says "ACQ compatible".
Hard to believe that a chemical combination that'll eat through anchor bolts would be better for ya!!!
I can't say I've ever really read up on the yellawood.
Are you sure it's an ACQ product, because I'd heard ACQ was on it's way out too.
