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Cryogenic paint removal

I am student Chemistry Engineer fourth grade of the university of Guadalajara, Mèxico, I do an investigation about the cryogenic recycling at paint cans, I know that is possible remove paint with cryogenic but I need the process, and to know if this process is expensive. Could you tell me where I found this information?.

thank you

MARTHA DAVALOS
UNIVERSITY OF GUADALAJARA - GUADALAJARA, MEXICO
2005

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Cryogenic paint removal uses liquid nitrogen at -196 C to embrittle and shrink crack the paint. Some mechanical brushing may be needed. Insulated storage and operating tanks are needed. For large parts, the liquid nitrogen can be sprayed.

Another low temperature process is abrasive blasting with dry ice pellets at -78 C (propelled by compressed air or a centrifugal pellet accelerator). The accelerator method is more efficient, but the compressed air method can use ordinary sandblasting equipment.

These processes are considered environmentally friendly and relatively inexpensive. For more information, search the Internet for "cryogenic paint removal" and "dry ice blasting."

Ken Vlach [deceased]
- Goleta, California
Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.
2005