Replies

1. 
   CAGIV | May 13, 2003 12:27am | #1

   I new that most were, but didn't know it applied to the stainless line.

   Never be afraid to try something new. Remember, amateurs built the ark, Professional build the Titanic.

2. 
   xMikeSmith | May 13, 2003 12:53am | #2

   morter.. i know CCA.. but i'm not familiar with CBA treated.. what is CBA ?

   Mike Smith   Rhode Island : Design / Build / Repair / Restore

1. 
   RalphWicklund | May 13, 2003 02:26am | #3

   http://forums.taunton.com/n/find/findRedir.asp?webtag=tp-breaktime&mg=95786992-11C1-4461-A4FA-72EAA524BE6F

   A little research (very little) showed that only the ACQ would have problems with galvanized fasteners, etc. Why do you suppose that Simpson would now have problems with CBA, a supposedly benign treatment and OK'd for galvanized.

   Gonna be a nightmare for the code writers and code enforcement guys (and us who still have to build things and hope they stay together)<G>

   Edited 5/12/2003 7:32:02 PM ET by Ralph Wicklund

1. 
   MrPita2 | May 13, 2003 08:14am | #4

   From Simpson Strong-Tie's PT wood/corrosion  FAQ:

   http://www.strongtie.com/ii_corrosion_info.html

   "Are these newer products more corrosive than CCA?

   Testing has indicated that Alkaline Copper Quat (ACQ-C) and Copper Azole (CBA-A and CA-B) are more corrosive to steel and some protective coatings applied over steel than Chromated Copper Arsenate (CCA-C). ACQ-C, CBA-A and CA-B may have different corrosion rates. Contact the treated wood chemical supplier for more information. "

   Elsewhere they generically reccomend hot-dip galv. or SS, as opposed to electro plate galv.  for any PT wood.  But they're pretty consistent in deferring to the preservative maker's fastener reccommendations.

   http://www.strongtie.com/ii_PTWoodFAQs.html#linksIf everything seems to be going well, you've obviously overlooked something.