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For the home plating specialist
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Snakeoil
honda305.com Member


Joined: 04 Aug 2010
Posts: 1142
Location: Upstate NY

PostPosted: Fri Dec 28, 2012 9:51 pm    Post subject: Reply with quote

Rather than retype it again here, here is a link to the results of trying Caswell's brightener.

http://www.triumphrat.net/classic-vintage-and-veteran/196681-follow-up-on-zinc-plating-issues.html

Regards,
Rob
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zoom
honda305.com Member


Joined: 16 Oct 2010
Posts: 132
Location: Willmar, Mn

PostPosted: Sun Jan 20, 2013 4:28 pm    Post subject: Reply with quote

Or those who don't want to read all the posts or can't quite wrap your head around it all here is another good quick link http://home.comcast.net/~rt66tbird/website/zincplating.html
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billyfly1
honda305.com Member


Joined: 17 Jan 2010
Posts: 29
Location: philadelphia pa

PostPosted: Wed Feb 20, 2013 8:12 pm    Post subject: Reply with quote

my name is billy and i have a problem!!!!
thank you to all who contributed to this topic!!!

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davomoto
honda305.com Member


Joined: 18 Nov 2006
Posts: 2515
Location: Marin County CA

PostPosted: Mon May 13, 2013 2:16 pm    Post subject: Reply with quote

All of the talk these days around the Bay Area is about hydogen embrittlement issues causing bolts to break on the new Bay Bridge. Thought it tied in with this topic nicely!

Davo
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sarals
honda305.com Member


Joined: 25 Jun 2012
Posts: 1014
Location: Monterey Peninsula, California

PostPosted: Mon May 13, 2013 8:51 pm    Post subject: Reply with quote

davomoto wrote:
All of the talk these days around the Bay Area is about hydogen embrittlement issues causing bolts to break on the new Bay Bridge. Thought it tied in with this topic nicely!

Davo


Davo, that's a great catch!! I never made the connection until now!! LOL!!

_________________
1965 CB77 305 Super Hawk
1989 NT650 Hawk GT
1981 Yamaha XJ550 Seca
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davomoto
honda305.com Member


Joined: 18 Nov 2006
Posts: 2515
Location: Marin County CA

PostPosted: Tue May 14, 2013 10:36 am    Post subject: Reply with quote

Hopefully all of our replated parts don't start snapping :-)

Davo
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Snakeoil
honda305.com Member


Joined: 04 Aug 2010
Posts: 1142
Location: Upstate NY

PostPosted: Sat May 18, 2013 8:01 pm    Post subject: Reply with quote

It was a concern of mine when I started doing this. The problem only attacks high strength steels like grade 8 bolts, springs, spokes, etc. The trick for those is to bake at 350F for a half hour after plating to drive out the H2.

I spoke with the engineer from International Plating and that is what he recommended and what they do when they chrome plate those types of parts.

One of the thoughts is that the acid baths used in the plating process for commercially plated parts impart my H2 into the grain structure than the plating process.

The spokes on my CL77 are in their 3 year and still doing fine. All were baked after plating.

regards,
Rob
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