Rust
(→What's galvanization?) |
(→Media blasting rust) |
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===Media blasting rust=== | ===Media blasting rust=== | ||
| − | *Sand is not recommended for media blasting panels. It acts like little hammers, warping panels with compressive forces (analagous to hail). | + | *Sand is not recommended for media blasting panels. It acts like little hammers, warping panels with compressive forces (analagous to hail). It can be done, but extreme caution must be used. |
*Use softer media (list examples): | *Use softer media (list examples): | ||
**55 grit silica-based media | **55 grit silica-based media | ||
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*Media blasting can remove good metal from body panels too. Also, used media can have metal particles left in the media. | *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. However, when soda blasting body panels, the resultant film can negatively affect finish adhesion. Epoxy primer can peel off. Soda blast medium must be "neutralized". 24 or 36 grit grinder, followed by warm water with soap. Do this with a scuff pad, and rinse thoroughly. Some finish companies specifically advise against the use of their products on soda-blasted finishes, which makes its use contentious. | *Soda blasting can remove light rust, and won't warp panels. However, when soda blasting body panels, the resultant film can negatively affect finish adhesion. Epoxy primer can peel off. Soda blast medium must be "neutralized". 24 or 36 grit grinder, followed by warm water with soap. Do this with a scuff pad, and rinse thoroughly. Some finish companies specifically advise against the use of their products on soda-blasted finishes, which makes its use contentious. | ||
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=Miscellaneous= | =Miscellaneous= | ||
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