Rust Preventing Paint Question
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,366
Likes: 7
From: Las Vegas NV
Rust Preventing Paint Question
Anyone have any recommendations on rust-preventing/stopping paint? My rear crossmember is starting to get some rust and I'd like to stop it before it spreads any further. I won't be able to do any type of frame-off resto (or similar) for a few years. I was thinking of jacking up the car, putting it on jackstands, getting rid of as much rust as possible by using a wirebrush, and then painting. I know I've read on the forum before about some type of paint that stops rust and prevents it from spreading...I don't think it was POR-15 (if I'm remembering correctly, I thought it came in a spray). Any ideas (I didn't have any luck using the Search function)? Also, would I have to use a primer?
Thanks!
Thanks!
Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
The spray can stuff you are recalling is Eastwood Encapsulator.
I've never used it - but reports seem to compare to POR15.
Don't breath it in !!!
The most important step in coating any rusted metal is preparation of
the surface. I have found that POR sticks quite well to lightly rusted
steel. However, if there are sections that are clean metal or painted,
\this is where trouble starts.
I have used it on my DD - coating rust spots and the leading
edge of the hood. The areas where the POR covers the edge
of the remaining paint ... inevitably peels off.
If you want it to truly last, I would consider a brush-on paint
stripper to remove old paint - or lots of wire brushing.
Any clean metal needs to be etched to provide a good surface.
POR sells Metal Ready, which is a Phosphoric Acid solution with zinc.
For items that cannot be submerged in a small bucket, I usually
use Naval Jelly. This will etch the clean steel - as well as
dissolve any loose rust. With some brushing and re-application,
it will dissolve all the rust. This - IMO is the best scenario.
I've never used it - but reports seem to compare to POR15.
Don't breath it in !!!
The most important step in coating any rusted metal is preparation of
the surface. I have found that POR sticks quite well to lightly rusted
steel. However, if there are sections that are clean metal or painted,
\this is where trouble starts.
I have used it on my DD - coating rust spots and the leading
edge of the hood. The areas where the POR covers the edge
of the remaining paint ... inevitably peels off.
If you want it to truly last, I would consider a brush-on paint
stripper to remove old paint - or lots of wire brushing.
Any clean metal needs to be etched to provide a good surface.
POR sells Metal Ready, which is a Phosphoric Acid solution with zinc.
For items that cannot be submerged in a small bucket, I usually
use Naval Jelly. This will etch the clean steel - as well as
dissolve any loose rust. With some brushing and re-application,
it will dissolve all the rust. This - IMO is the best scenario.
