Rustproofing Inside Frame Rails
Drifting
Joined: Sep 2006
Posts: 1,986
Likes: 21
From: Columbus MN
After my research, I bought a "rustproofing and undercoating" felxible wand sprayer kit for frames and body cavities from Eastwood for about $50. I may use the rag trick too. I also bought their rust converter, rust encapsulator, frame paint and HD anit-rust prevention paint. The rust convertor is a two parter to kill the rust, the rust encapsulator is claimed by them to be better than POR15 (who knows?) and has built-in UV resistance , the frame paint is a top coat that provides chip resistance, and finally, they recommend using their HD anit-rust paint inside frame rails. (The first three items will mainly be used as a system on the outside of the frame.) Anti-rust (for inside the frame) is a paint that drys but stays somewhat soft and self repairing from scratches (they say). It cannot be painted over however so I guess it has some wax or something in it. My thought is that it might be preferable to chain saw oil (that I had considered) because anti-rust will dry and not attract and collect dirt and should not have to be reapplied for a long time because it will not wash off (needs a solvent to remove).
This all may be overkill, especially since my frame is in very good shape, but I am only planning to do this just once and a frame-off is (hopefully) NOT in my future. This is costing me north of $250 for everything from Eastwood. You could definitely save money going some other routes.
FWIW
This all may be overkill, especially since my frame is in very good shape, but I am only planning to do this just once and a frame-off is (hopefully) NOT in my future. This is costing me north of $250 for everything from Eastwood. You could definitely save money going some other routes.
FWIW
The frame on my '80 is in pretty good shape - surface rust only, even in the kickpanel area. The car spent most of its like in Arizona and less than a year in California before importing here to Minnesota. I plan to buy the Eastwood undercoating gun, hoses, and bottle, and probably their products too. They just replaced their old spraying system (#160003) with a new one (20441), still for $50.
Racer
Joined: Jan 2005
Posts: 342
Likes: 127
From: Napanee Ontario
2024 C3 of the Year Finalist- Modified
I used POR-15 on mine. I just picked up an undercoating gun with a flexable tube on the nozzle. I sprayed it rite from the can, but next time I would thin it a bit to get more even coverage.
Thread Starter
Safety Car
Joined: Oct 2006
Posts: 3,930
Likes: 15
From: Calgary Alberta
corvette74, can you provide some more details to what steps you took to prepare the metal? Did you follow the three step process por-15 recommends...or was it too much to do the three step process? Please provide more detail.
Drifting
Joined: Aug 2003
Posts: 1,424
Likes: 0
From: Lakeland FL
I'm surprised more people don't use Eastwood's heavy duty anti-rust. It comes in quarts and is sprayed in. I used it and was happy with it; even though it was a messy job. My frame is powder coated and was chemical dipped prior to that.
http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT
http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT
Le Mans Master
Joined: Mar 2000
Posts: 9,127
Likes: 2,326
From: Pottsville, PA. USA Home Of America's Oldest Brewery Yuengling
I know somebody who ended up in the hospital for a week becuse of doing this with POR-15. This guy sprayed his frame without a respirator and the next day was in intensive care.
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Racer
Joined: Jul 2005
Posts: 379
Likes: 54
1. POR-15 is great for many things but spraying it can be very dangerous to your health.
2. Any undercoating that hardens will trap moisture and actually accelerate rusting where it eventually delaminates.
3. Coating the inside of the frame with oil one time will almost certainly prevent any of our C3 frames from rusting further where it counts.
4. There's a troublesome 'compartment' partially blocked off in the last inch or so of rear end of the main frame rail (in front of the rear tire) that traps dirt and debris which holds moisture and can thereby cause rust-through in otherwise excellent solid rust-free frames. That place deserves special attention, blowing it out and oiling it.
John
2. Any undercoating that hardens will trap moisture and actually accelerate rusting where it eventually delaminates.
3. Coating the inside of the frame with oil one time will almost certainly prevent any of our C3 frames from rusting further where it counts.
4. There's a troublesome 'compartment' partially blocked off in the last inch or so of rear end of the main frame rail (in front of the rear tire) that traps dirt and debris which holds moisture and can thereby cause rust-through in otherwise excellent solid rust-free frames. That place deserves special attention, blowing it out and oiling it.
John
Pro
Joined: Apr 2006
Posts: 733
Likes: 1
From: Coquitlam British Columbia
Homemade Waxoyl ?
While doing a search on the Waxoyl rust inhibitor that someone mentioned I came across this recipe to make your own, so thought I would post a link for the financially challenged DIY'ers to perhaps research some more and use if they find it is safe and might work for them.
http://www.geocities.com/wallaces_21/waxoyl.html
I am personally not sure how safe this is to make or use so please do your own research before attempting to fool with this recipe!
ikwhite
http://www.geocities.com/wallaces_21/waxoyl.html
I am personally not sure how safe this is to make or use so please do your own research before attempting to fool with this recipe!
ikwhite
Last edited by ikwhite; Mar 29, 2007 at 11:56 PM.
Melting Slicks
Joined: Dec 2005
Posts: 2,441
Likes: 0
