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Trial Number 15

Trial Purpose:

To evaluate selected cleaner on parts contaminated with buffing compound.

Date Run:

07/16/2008

Experiment Procedure:

Five products were diluted to 3% using DI water in a 1510 Branson 40 kHz ultrasonic tank and heated to 130 F. The products were degassed for five minutes.

A set of three soiled steel parts coated with buffing compound were immersed into the ultrasonic tank and cleaned for 5 minutes. Following cleaning, coupons were observed for cleanliness without a rinsing.

A second set of parts were cleaned at 160 F.

Trial Results:

All parts cleaned were equally cleaned after five minutes of cleaning at both temperatures. Some water spots were visible on all parts, but no buffing compound residue remained.

Success Rating:

Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.

Conclusion:

Any of the five products could be used successfully to remove the buffing compound from the steel parts using ultrasonic cleaning.

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