I can tell you from the side of being someone who does NDT work for a living that powder coating does not stop cracks from showing. Powder coat will cover bad welds as does paint. Also just like paint it does not cover over sharp edges well.
Sent from my Verizon Wireless BlackBerry -----Original Message----- From: "Fred Johnson" <f...@renotruss.com> Sender: krnet-boun...@mylist.net List-Post: krnet@list.krnet.org Date: Tue, 18 Jan 2011 16:14:54 To: 'KRnet'<kr...@mylist.net> Reply-To: KRnet <kr...@mylist.net> Subject: RE: KR> powdercoating parts My first airplane was an Acro Sport II and I had two separate tech counselors tell me the same thing Tony. Powder coating was not a very good idea. so I opted for traditional primer and then paint on the steel structure. Even on a flat part without welds, they didn't recommend it because if the part does develop a crack, or even a stressed area, you won't see it until your kiss your butt goodbye.. Fred Johnson Reno, NV Tony wrote: I've been told (by someone who seems to know what he's talking about but may not be an authority) that powder coating is not a good idea for structural parts because cracks, particularly around welds, may be hidden by the powder coating. Can anyone shed some light on this? Tony King _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
