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Rusty frame [message #257501] Fri, 01 August 2014 22:59 Go to next message
thorndike is currently offline  thorndike   United States
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Registered: January 2011
Location: Conifer, Colorado
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Senior Member
Like most of us, I have a good bit of rust on parts of my frame. While I would love to find a way to do an off frame restoration and completely blast, prime, and seal my frame, it is not in the financial cards. I know that there are paints/chemicals that claim to combine with the rust leaving a finish ready for paint. I believe one of them is called Marhyde One Step or something like that.

What do folks consider the best way to treat the rusty frame?

Bob


Robert Peesel 1976 Royale 26' Side Dry Bath Conifer, Colorado
Re: Rusty frame [message #257503 is a reply to message #257501] Fri, 01 August 2014 23:08 Go to previous messageGo to next message
GMC Cruse is currently offline  GMC Cruse   United States
Messages: 606
Registered: June 2009
Location: SE Michigan
Karma: 3
Senior Member
thorndike wrote on Fri, 01 August 2014 23:59
Like most of us, I have a good bit of rust on parts of my frame. While I would love to find a way to do an off frame restoration and completely blast, prime, and seal my frame, it is not in the financial cards. I know that there are paints/chemicals that claim to combine with the rust leaving a finish ready for paint. I believe one of them is called Marhyde One Step or something like that.

What do folks consider the best way to treat the rusty frame?

Bob


I've used POR-15 and had good results on my classic cars.

http://www.por15.com/POR-15-Rust-Preventive-Coating_p_8.html


Mike K. '75 PB Southeast Michigan
Re: [GMCnet] Rusty frame [message #257505 is a reply to message #257503] Fri, 01 August 2014 23:38 Go to previous messageGo to next message
jimk is currently offline  jimk   United States
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Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
If your frame has rust that has eaten through the frame,you'll need to
repiair it.
Should you have a ruty frame, take transmission fluid and spray it on
I know it willl stop it and easy to do
Dan Stucky recommends us to do it.
He is our guy when it comes to replacing frame and sections;
Transmission fluid does not gather dirt/dust like petroleum oil or grease.


On Fri, Aug 1, 2014 at 9:08 PM, Mike wrote:

> thorndike wrote on Fri, 01 August 2014 23:59
>> Like most of us, I have a good bit of rust on parts of my frame. While
> I would love to find a way to do an off frame restoration and completely
>> blast, prime, and seal my frame, it is not in the financial cards. I
> know that there are paints/chemicals that claim to combine with the rust
>> leaving a finish ready for paint. I believe one of them is called
> Marhyde One Step or something like that.
>>
>> What do folks consider the best way to treat the rusty frame?
>>
>> Bob
>
>
> I've used POR-15 and had good results on my classic cars.
>
> http://www.por15.com/POR-15-Rust-Preventive-Coating_p_8.html
> --
> Mike K.
> '75 PB
> Southeast Michigan
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
Re: Rusty frame [message #257511 is a reply to message #257501] Sat, 02 August 2014 07:10 Go to previous messageGo to next message
Joe Weir is currently offline  Joe Weir   United States
Messages: 769
Registered: February 2013
Location: Columbia, SC
Karma: 7
Senior Member
As long as it is surface rust, I will second POR15. It is moisture curing urethane, and gets pretty darn hard. Can be used for all sorts of repairs when combined with cloth. They make a chassis coat product that is made for frames. Hit the surface with ospho or some such treatment and then the POR15 and the rust stops.

There is another product called Rust bullet - pretty much the same thing, only UV stable and silver in color.

On the unproven front, I used some of Rustoleums new spray on rust converter/topcoat on a few non-structural bits to see how well it contains. So far seems to hold up well. I used it on the outside of the brake master:

http://www.gmcmhphotos.com/photos/data/6394/medium/Master_cylinder.jpg
http://www.gmcmhphotos.com/photos/data/6394/medium/Master_cylinder.jpg

Which will be interesting to see how it holds up to brake fluid as well. This Picture was taken after 3 months. Infamous PO wire nut seen in background - I think this would be from the "how do I turn off the dash fan" hack.


76 Birchaven - "Wicked Mistress" - New engine, trans, alum radiator, brakes, Sully airbags, fuel lines, seats, adult beverage center... those Coachmen guys were really thinking about us second hand owners by including that beverage center... Columbia, SC.

[Updated on: Sat, 02 August 2014 07:14]

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Re: Rusty frame [message #257604 is a reply to message #257501] Sun, 03 August 2014 11:10 Go to previous message
bryant374 is currently offline  bryant374   United States
Messages: 563
Registered: May 2004
Location: Pleasant Valley, NY 12569
Karma: 1
Senior Member
Surface treatments for surface rust on GMC MH frames is a good idea, however the rust on interior frame areas is often a more serious and unseen problem. I have been using transmission fluid and the homemade setup shown in the following links for the last 20 years or so with good results.

http://www.gmcmhphotos.com/photos/miscellaneous-bryant-stuff/p55412-preventing-frame-rust.html

http://www.gmcmhphotos.com/photos/miscellaneous-bryant-stuff/p55414-preventing-frame-rust.html

Hard to beat cheap & simple Wink


Bill Bryant
PO 1976~PB (owned 34 years)
1914 Ford (owned 70 years)
1965 Corvette (owned 39 years)
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