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  for Metal Finishing since 1989
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Sandblasting media for cast aluminum

2004

Hello,

I am in the process of prepping my motorcycle wheels for powder coating. The wheels are made of cast aluminum. Through my workplace I have access to a sandblasting hood that uses a glass media. I would like to know if this media is suitable for the wheels or if it is too harsh? Any help from you guys would be greatly appreciated.

Thanks,

Michael Howell
hobbyist - New Westminster, British Columbia, Canada

I recently blasted a sand-cast aluminium Honda engine case using silica sand. It turned out great and there were no ill effects. Also, the sandblasted finish leaves a great foundation for powdercoat to adhere to.

Doug McKane
- Winnipeg, Manitoba, Canada
2004

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This is useful feedback, and we thank you for it, Doug. It sounds like you were looking for a matte finish before powdercoat, and it sounds like Michael was too, so hopefully you helped him. But most people who are talking about wheels are looking for a bright reflective, polished finish--and I think sandblasting is poison for that. Correct me if I'm wrong.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
2003