[AJD] metal coating roof

[chester win]

Hats off to a good use for an old structure.  I am sure there are many opinions as to what you should use.  Also, there are primers and paints formulated to cling to galvanized metal. I am not too sure how good these are, except for their higher cost. My suggestion is as follows, because you mentioned the entire roof is rusted:  

Lightly wire brush the entire surface.  No need to work too hard at it.  Just rmmove anything loose and slightly rough the surface.  

Coat with Rustolium over rust primer ( red).  If you can find it, use only the rustolium brand. It should have (over rust) stated on the label.  This product is supposed to contain fish oil and get into the rust for a good bond.  Do not overthin and put on a scimpy coat, but spray is O.K. if not too thin.  A few runs won't matter much up there except to people in airplanes.

Let the primer dry down pretty well.  Out in the sunlight and air a week is probably good. 

Paint it over with your favorite color
of regular rustolium oil base paint. 
(Tractor ref: could use J.D. green and/or J.D. yellow).

I did this process with a large metal awning (FACES SOUTH TO THE SUN) in 1982 or 1983, and it has held up great. Just now starting to show light rust on the surface after roughly 22 years.

Good luck, and don't fall from the roof.

P.S.  I do not sell paint or any paint products and have no incentive to boost any particular brand.  Just passing along life's observations.

Charlie V.







-----Original Message-----
From: "Rev. Gerber"<drgerber at fuse.net>
To: "'Antique John Deere mailing list'"<antique-johndeere at lists.antique-tractor.com>
Date: Sat Apr 02 05:32:30 PST 2005
Subject: Re: [AJD] metal coating

>I also have a coating question.  I have an old metal corn crib, appears
>to be galvanized, silver gray in original color, now the roof is a rust
>color.  I would like to paint the structure with minimum sanding or
>prep, hopefully with one of the new materials that bonds with the rust,
>and stops the rust process from proceeding.  I use the corn crib to
>store firewood.  Great use for the old structure.  Thanks.  
>
>Rev. David R. Gerber
>Mt. Airy United Methodist Church
>2645 North Bend Rd.
>Cincinnati, OH  45239
>Phone: 513-541-0307
>FAX: 513-541-0366
>
>
>-----Original Message-----
>From: antique-johndeere-bounces at lists.antique-tractor.com
>[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
>Of Michael Ostrander
>Sent: Friday, April 01, 2005 4:48 PM
>To: ATIS ATIS
>Subject: [AJD] metal coating
>
>I am looking for suggestions for a material to cover cast iron that has
>the
>following properties:
>
>- thin- minimum thickness
>- rust resistance- thin covering but will not rust
>- low maintenance- do not want to have to recoat every 6 months
>- coloring- either clear or black, or dark
>- adherence- will not adhere to the mating surface but will let both
>pieces
>move as needed
>
>I thought about the material used on gun barrels but do not know
>anything
>about the material.  Paint is always an option but thickness of primer
>and
>top coat on sliding parts could be an issue.  Oil will collect dirt and
>that
>is unacceptable.
>
>Any suggestions would be welcomed.
>
>Thanks,
>
>Michael
>
>p.s.- before i get jumped, this is for an antique john deere tractor
>that
>has wiggle room around normal color standards.
>
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>
>
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