Rust
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==Notes== | ==Notes== | ||
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+ | ===Sandblasting rust== | ||
+ | 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 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. | ||
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*There are many different products and approaches for handling rust. | *There are many different products and approaches for handling rust. | ||
*Rust encapsulators are common in the hotrodding industry. Some people think that they won't get rid of a problem, and may make it worse. Oftentimes its is how you apply and prepare it. | *Rust encapsulators are common in the hotrodding industry. Some people think that they won't get rid of a problem, and may make it worse. Oftentimes its is how you apply and prepare it. | ||
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**Even high grade epoxies and finishes are not 100% impermeable to water and air. | **Even high grade epoxies and finishes are not 100% impermeable to water and air. | ||
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*Phosphoric acid or muriatic acid are recommended as well. | *Phosphoric acid or muriatic acid are recommended as well. | ||
*Rust forms so quickly that if you are sand blasting, media blasting, etc., the surface rust will begin to form before you finish the job. | *Rust forms so quickly that if you are sand blasting, media blasting, etc., the surface rust will begin to form before you finish the job. | ||
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