Rust
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The fact that POR-15 is not used by manufacturers is also important. | The fact that POR-15 is not used by manufacturers is also important. | ||
| − | + | 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. | |
| − | + | *Even high grade epoxies and finishes are not 100% impermeable to water and air. | |
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