Soda blasting
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Soda blasting is done with a high volume, low pressure wet or dry blasting machine. 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. | Soda blasting is done with a high volume, low pressure wet or dry blasting machine. 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. | ||
| + | ===Soda blasting medium=== | ||
The sodium bicarbonate used as a blasting medium is chemically identical to "baking soda"; however, the blast medium typically uses larger particles. Some soda blasting media also include additives to prevent caking or help flow, such as tricalcium phosphate or calcium carbonate. | The sodium bicarbonate used as a blasting medium is chemically identical to "baking soda"; however, the blast medium typically uses larger particles. Some soda blasting media also include additives to prevent caking or help flow, such as tricalcium phosphate or calcium carbonate. | ||
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| + | ====Examples of soda blasting medium==== | ||
| + | *[http://www.sodaworks.com/pages/products/NatruimSodaBlast.php Natrium] -- pure sodium bicarbonate, typical particle size of 290 microns. | ||
| + | *[http://www.sodablastsystems.com/ SodaClean Maintenance Plus] -- sodium bicarbonate with tricalcium phosphate and TFF: "treated free flowing additive". | ||
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===Soda blasting residue removal=== | ===Soda blasting residue removal=== | ||
| − | Removal of residue is crucial to the soda blasting procedure. [http://www.holdtight.com/index.htm Holdtight 102] has been recommended for use in cleaning soda-blasted surfaces prior to application of primer. | + | Removal of residue is crucial to the soda blasting procedure. [http://www.holdtight.com/index.htm Holdtight 102] has been recommended for use in cleaning soda-blasted surfaces prior to application of primer. [http://www.nutechsodablasting.com/content/view/14/12/ More details on Holdtight 102]. |
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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*http://www.balearicsodablasting.com/FAQ.html | *http://www.balearicsodablasting.com/FAQ.html | ||
*http://www.nutechsodablasting.com/content/view/3/7/ | *http://www.nutechsodablasting.com/content/view/3/7/ | ||
| + | *[http://siri.org/msds/f2/bdm/bdmjw.html Sodium bicarbonate MSDS] | ||
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