Painting the Chassis - Fiberglass RV


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Old 07-02-2006, 12:12 AM   #1
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I just spent the last five days under My Trillium 1300, wire brushing, sanding,and scraping the chassis. Then painting it with Tremclad Rust paint. Then spaying the underside of the frame with undercoat. Any one else ever do that??? Or am I the only crazy person to do that???....just wondering...
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Old 07-02-2006, 12:41 AM   #2
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I just painted the frame of The Eggstacy. It's RED PRIMER for now. When I get enough time for the final coat, that will be RED!
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Old 07-02-2006, 12:56 AM   #3
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I just finished painting the frame on mine. I used Por-15, great stuff with no sanding needed. Just wear gloves, because nothing takes it off. I was wearing that black paint for almost 2 weeks.
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Old 07-02-2006, 06:49 AM   #4
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I have been treating my frame with Phosphorus Plus, available at Home Depot, one section at a time. It does a fantastic job of removing the rust. After wire brushing and treating to remove rust I have been painting with hammer finish black Rust-Oleum. Looks great on the sections I have completed.
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Old 07-02-2006, 09:20 AM   #5
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I just spent the last five days under My Trillium 1300, wire brushing, sanding,and scraping the chassis. Then painting it with Tremclad Rust paint. Then spaying the underside of the frame with undercoat. Any one else ever do that??? Or am I the only crazy person to do that???....just wondering...

Yes and No.

I painted the part you can see without crawling under the trailer, but I appreciate those dedicated folks that do this kind of thing.

If some day I decide to treat and paint the entire frame, I think I would strongly consider removing the body first. I don't know how the time element would work out, but it may not be much different.

Then the bare frame could be tilted and flipped to gain access to all areas, and any beefing up could be done. It may not be too hard to find a plating shop to galvanize it.

This is one of those projects that I consider, but then set aside. I go through this mental questioning -- "Is this possession supposed to serve me, or am I supposed to serve it?"

Since I usually buy used stuff, I am immediately thrust into the second question -- "How much do I have to serve it so that it will serve me as I want to be served?"
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Old 07-02-2006, 09:53 AM   #6
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That happens to me, too. I think so hard about all aspects of tackling a project I end up not doing anything because I'm then convinced the tail's wagging my dog. John's got it right. Just DO IT. Finer points be damned! That, at the very least, gets you off square one.

By the way, where do you get Tremclad rust paint. For that matter, what is/where can I find POR-15? Never heard of these.
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Old 07-02-2006, 10:37 AM   #7
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Yes and No.

I painted the part you can see without crawling under the trailer, but I appreciate those dedicated folks that do this kind of thing.

If some day I decide to treat and paint the entire frame, I think I would strongly consider removing the body first. I don't know how the time element would work out, but it may not be much different.

Then the bare frame could be tilted and flipped to gain access to all areas, and any beefing up could be done. It may not be too hard to find a plating shop to galvanize it.

This is one of those projects that I consider, but then set aside. I go through this mental questioning -- "Is this possession supposed to serve me, or am I supposed to serve it?"

Since I usually buy used stuff, I am immediately thrust into the second question -- "How much do I have to serve it so that it will serve me as I want to be served?"

I feel the same way. I've been wanting to take the camper off the frame and do all this and replace the axle. I think of preparing for some future expedition. Maybe Alaska. Or just to know I've done everything I can to make it solid and reliable. Then again...enough already, let's go camping.
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Old 07-02-2006, 11:49 AM   #8
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By the way, where do you get Tremclad rust paint. For that matter, what is/where can I find POR-15? Never heard of these.
Myron, I dont' know about the Tremclad, but POR-15 is well used by auto restorers. I got mine from http://www.ipdusa.com

and plan on using it on the frame of my Boler also.
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Old 07-02-2006, 12:29 PM   #9
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Myron, I dont' know about the Tremclad, but POR-15 is well used by auto restorers. I got mine from http://www.ipdusa.com

and plan on using it on the frame of my Boler also.
You can also buy POR15 Direct at www.por15.com

I restored the underside of our Burro about 3 years ago by coating the Frame with POR15 Silver (Silver has the most solids in it) and then topping the entire underside with two coats of Herculiner. The nice thing about POR15 is it actually works better with a small amount of surface rust on the frame, so other than brushing off loose rust/dirt, prepping an old frame is pretty simple.

This has worked incredibly well, with no rust on the frame after 3 years and a few of the mild-soft spots in the original floor fixed by generously soaking the wood in the Herculiner.

Like Fred though, I too wore some POR15 (and some Herculiner to boot) for a couple of weeks. Seriously, if you get this stuff on you will be wearing it until the underlying skin flakes off.

- Michael
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Old 07-02-2006, 03:00 PM   #10
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I just spent the last five days under My Trillium 1300, wire brushing, sanding,and scraping the chassis. Then painting it with Tremclad Rust paint. Then spaying the underside of the frame with undercoat. Any one else ever do that??? Or am I the only crazy person to do that???....just wondering...
If the weather permits, this week, i'll be doing the same to my Bigfoot.

Yves.
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Old 07-03-2006, 10:13 AM   #11
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If the weather permits, this week, i'll be doing the same to my Bigfoot.

Yves.
I would recommend against using undercoat on the bottom of the floor. It can trap water. I brush polyester resin on mine.
Don Meyer
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Old 07-03-2006, 10:31 AM   #12
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And I'd recommend NOT using rubberized undercoating material on the parts of the frame subject to cracking. If the undercoating flexes it may hide areas that are starting to come apart..until it's too late (or at a bad time...as if there are any good times?)
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Old 07-03-2006, 11:01 AM   #13
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por 15

Why do I need a "topcoat" over POR-15 anyway?
You don't unless the POR-15 finish will often be exposed to sunlight. UV rays tend to discolor POR-15, and so it must be topcoated for use in sunlight areas. For example, if you are using POR-15 on your car frame, you won't need a topcoat, except on areas of the frame that may extend beyond the body, such as frame horns for bumper brackets.
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Old 07-03-2006, 12:15 PM   #14
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I try to paint the frame with tremclad every two to three years. I guess it gives me a reason to get black on nose, elbows and hair. I'm also the type that has mustard stains on my shirt after hotdogs. It does help to keep it lookong good and slowing the rust.
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