Soda blasting
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| − | Soda blasting is the use of sodium bicarbonate ("baking soda") for paint stripping and rust removal. | + | Soda blasting is the use of sodium bicarbonate ("baking soda") as a blast medium for paint stripping and rust removal. |
Soda blasting is controversial in hotrodding because substrates that have been soda blasted often display poor adhesion characteristics as a result of blasting residue left on the substrate. In addition, even when the residue is completely removed, soda blasting may offer no savings over conventional media blasting, because of the extra steps required to remove the residue. | Soda blasting is controversial in hotrodding because substrates that have been soda blasted often display poor adhesion characteristics as a result of blasting residue left on the substrate. In addition, even when the residue is completely removed, soda blasting may offer no savings over conventional media blasting, because of the extra steps required to remove the residue. | ||
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| + | Nevertheless, in the right conditions, soda is a useful blasting medium. | ||
==Soda blasting residue removal== | ==Soda blasting residue removal== | ||
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==Soda blasting procedure== | ==Soda blasting procedure== | ||
| − | + | Soda cleans surfaces not by abrasion, like conventional blasting media, but by the energy released by the explosion that occurs when the soda particles contact the substrate. | |
Correct soda blasting procedure may involve the following steps after blasting: | Correct soda blasting procedure may involve the following steps after blasting: | ||
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*Degreasing. | *Degreasing. | ||
*Epoxying. | *Epoxying. | ||
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| + | ===Resources=== | ||
| + | *[http://www.fordmuscle.com/forums/body-paint-articles/485680-soda-blasting-budget.html Soda blasting on a budget] | ||
==Reasons in favor of using soda blasting== | ==Reasons in favor of using soda blasting== | ||
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*For a professional, experienced shop that's well-trained in its use, does all of the finish prep work itself, and has a soda-friendly guarantee from its paint supplier, soda blasting may be a viable choice. | *For a professional, experienced shop that's well-trained in its use, does all of the finish prep work itself, and has a soda-friendly guarantee from its paint supplier, soda blasting may be a viable choice. | ||
*Doesn't harm glass, chrome, or rubber. | *Doesn't harm glass, chrome, or rubber. | ||
| + | *Does not cause heat buildup or sparks. | ||
| + | *Does not abrade substrate. | ||
| + | *It's water-soluble, and can typically be washed down a conventional drain. | ||
| + | *The soda blasting residue can be temporarily left on the substrate, as a rust inhibiting protective coating. | ||
==Reasons against using soda blasting== | ==Reasons against using soda blasting== | ||
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*Laborious, time-consuming steps required to prep parts after blasting. | *Laborious, time-consuming steps required to prep parts after blasting. | ||
*Only removes light flash rust. | *Only removes light flash rust. | ||
| − | *Will not remove thick coatings of body filler. | + | *Will not remove thick coatings of body filler. ('''This statement is disputed, and needs clarification.''') |
*Does not leave an anchor pattern. | *Does not leave an anchor pattern. | ||
*Voids warranties with many paint manufacturers. | *Voids warranties with many paint manufacturers. | ||
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==References== | ==References== | ||
*http://en.wikipedia.org/wiki/Sodablasting | *http://en.wikipedia.org/wiki/Sodablasting | ||
| + | *http://www.hotrodders.com/forum/once-all-wiki-soda-blasting-162700.html | ||
| + | *http://www.tristatesodablasting.com/faqs.html | ||
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