Editing Rust

These are various notes culled from threads on the Hotrodders Bulletin Board and related links. Needs to be organized and verified.


===Cause of rust===
Need more background here. Plus info on why newer cars don't rust nearly as badly, and on salt/winter driving conditions. Review this article: http://www.metalwebnews.com/howto/rust/rust.html .


===Media blasting rust===
*Sand is not recommended for media blasting panels. It acts like little hammers, warping panels with by compressive forces (analagous to hail). Use softer media (list examples): 55 grit silica-based media.
Can be done, but must be cautious. Use a small sandblaster, or a sandblaster set on low (expand on this: distance, angle, etc.).
*Can sandblasting "increase" rust? Or, if the rust is removed and the metal is sealed, shouldn't it be eliminated? Some thoughts on this are:
**Although sandblasting may appear to have removed all the rust to the naked eye, it hasn't really done so.
**It's caused by water in the air compressor line, as sand will harbor some moisture. Also, compressed air contains moisture. And, sand has salt in it. A moisture trap in the line should solve the problem with the water in the air line.
*Many panels have seams, hems, and bends that are inaccessible by blasting, and can hold moisture and rust.
*Body panels can be sand blasted. However, it must be done carefully (explain). The pressure of the sand hitting the body panels causes warpage.
*One option is to use chemical paint stripper, then use a sandblaster to lightly "dust" the remaining rust.
*Media blasting can remove good metal from body panels too. Also, used media can have metal particles left in the media.
*Soda blasting can remove light rust, and won't warp panels.
*[http://en.wikipedia.org/wiki/Sugar_sand Sugar sand] is finer and less-damaging than regular sand.
*For cleaning in seams, a spot blaster is recommended.
* Take precautions with proper safety equipment (list it here)

===Accessing rust between interior panels===
Pressure washer with pencil tip can knock everything loose out.

Drill small holes, get a spray wand with a 360-degree head. Then, when done, weld the holes shut.


===What exactly is e-coating?===

===Getting your entire body acid dipped===
About $1000 - $1500? From Redi-Strip (technically not an acid? research this), a national chain.

===POR-15, Zero-Rust, Eastwood Rust Encapsulator===
These might be the top 3?

Len Stuart of Autobodystore.com recommends Picklex-20 followed by Zero Rust: http://www.autobodystore.com/new_page_1.htm

from Eastwood: [http://www.eastwoodco.com/jump.jsp?itemID=852