Soda blasting
From Crankshaft Coalition Wiki
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[[Image:65RollsRoyceSodaBlasted.jpg|350px|thumb|A 1965 Rolls Royce after being soda blasted.]] | [[Image:65RollsRoyceSodaBlasted.jpg|350px|thumb|A 1965 Rolls Royce after being soda blasted.]] | ||
Soda blasting is the use of sodium bicarbonate ("baking soda") or sodium bicarbonate-based materials as blast media for paint stripping. | Soda blasting is the use of sodium bicarbonate ("baking soda") or sodium bicarbonate-based materials as blast media for paint stripping. | ||
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==Soda blasting history== | ==Soda blasting history== | ||
− | Soda blasting was originally used as a method of stripping/cleaning industrial machinery. It was developed in the 1980's, and was most notably used | + | Soda blasting was originally used as a method of stripping/cleaning industrial machinery. It was developed in the 1980's, and was most notably used in the restoration of the Statue of Liberty. |
Soda blasting crossed over into the automotive restoration field as somewhat of a miracle process, a misconception that had to be debunked. Although soda has its valid uses as a blast medium, it also has its own set of complexities and nuances that must be taken into consideration. | Soda blasting crossed over into the automotive restoration field as somewhat of a miracle process, a misconception that had to be debunked. Although soda has its valid uses as a blast medium, it also has its own set of complexities and nuances that must be taken into consideration. | ||
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*Paint manufacturers advise against its use. | *Paint manufacturers advise against its use. | ||
*Can't re-use the medium after blasting. | *Can't re-use the medium after blasting. | ||
+ | *Soda Blasting will not allow for a high silica count paint to adhere to it after process is complete. | ||
Overall, soda blasting is probably not the best choice for the hobbyist or do-it-yourselfer. | Overall, soda blasting is probably not the best choice for the hobbyist or do-it-yourselfer. | ||
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This opinion is expanded upon in [http://spi.forumup.org/viewtopic.php?t=156&mforum=spi this discussion in the Southern Polyurethanes forums]. | This opinion is expanded upon in [http://spi.forumup.org/viewtopic.php?t=156&mforum=spi this discussion in the Southern Polyurethanes forums]. | ||
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<blockquote> | <blockquote> | ||
''"We don't recommend sodium bicarbonate, because you can’t clean it out of the pores of the metal well enough."'' | ''"We don't recommend sodium bicarbonate, because you can’t clean it out of the pores of the metal well enough."'' | ||
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The use of soda blasting is thought to void the warranties of paint manufacturers. | The use of soda blasting is thought to void the warranties of paint manufacturers. | ||
− | BASF does not have a position specific to soda blasting. | + | ===BASF=== |
+ | BASF does not have a position specific to soda blasting. If this method is used, after all residue is removed, standard substrate preparation procedures must be performed. | ||
===DuPont=== | ===DuPont=== | ||
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===Sherwin-Williams=== | ===Sherwin-Williams=== | ||
− | The use of soda blasting does not nullify Sherwin Williams' | + | The use of soda blasting does not nullify Sherwin Williams' warranty. However, Sherwin WIlliams discourages its use. |
− | Michael Pellett, a representative from Sherwin-Williams' | + | Michael Pellett, a representative from Sherwin-Williams' Dallas Automotive Training Center [http://www.hotrodders.com/forum/once-all-wiki-soda-blasting-162700-4.html#post1160667 has stated]: |
<blockquote> | <blockquote> | ||
''Like most paint companies, we have experienced poor results in the past regarding this process as a surface preparation step. We actively discourage our customers from utilizing this process by explaining the potential problems and offering other alternatives.'' | ''Like most paint companies, we have experienced poor results in the past regarding this process as a surface preparation step. We actively discourage our customers from utilizing this process by explaining the potential problems and offering other alternatives.'' | ||
</blockquote> | </blockquote> | ||
− | For more detail, see the text of [[:Image:Sherwin-WilliamsWarranty.pdf| | + | For more detail, see the text of the [[:Image:Sherwin-WilliamsWarranty.pdf|Sherwin Williams warranty]]. |
===Sikkens=== | ===Sikkens=== | ||
− | + | Does not recommend Soda Blasting | |
===SPI=== | ===SPI=== | ||
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===Valspar=== | ===Valspar=== | ||
− | + | Does not recommend Soda Blasting. | |
==Related articles== | ==Related articles== | ||
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*[http://armex.com/CaseStudies/casestudy0102.aspx Armex automotive and aerospace case studies] | *[http://armex.com/CaseStudies/casestudy0102.aspx Armex automotive and aerospace case studies] | ||
+ | ==External resources== | ||
+ | *[http://www.chesapeakesodaclean.com/media/PDF/CSC-SodaBlast_Auto-Paint-Strip.pdf Soda Blast - Automotive Paint Stripping] | ||
[[Category:Body and exterior]] | [[Category:Body and exterior]] | ||
[[Category:Garage and shop]] | [[Category:Garage and shop]] |