Rust
(→Rust removers and "converters") |
(→Media blasting rust) |
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**Although sandblasting may appear to have removed all the rust to the naked eye, it hasn't really done so. | **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. | **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. | ||
| + | **Sand by hand after sandblasting, to eliminate this issue. | ||
*Many panels have seams, hems, and bends that are inaccessible by blasting, and can hold moisture and rust. A spot blaster is recommended. | *Many panels have seams, hems, and bends that are inaccessible by blasting, and can hold moisture and rust. A spot blaster is recommended. | ||
*One option is to use chemical paint stripper, then use a sandblaster to lightly "dust" the remaining rust. | *One option is to use chemical paint stripper, then use a sandblaster to lightly "dust" the remaining rust. | ||
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