Three products from the lab's database were selected based on client supplied information. The products were diluted to 5% in 250 ml beakers using DI water and immersed in a hot water bath at 130 and degassed for five minutes in a Branson 3510 ultrasonic 40 kHz unit.
One supplied dirty buckle was cleaned in each solution for five minutes using 40 kHz ultrasonic agitation. Buckles were rinsed for 15 seconds in a tap water bath at 120 F and dried using a dry compressed air for 30 seconds. Buckles were visually inspected for cleanliness.
Two products were found to work on the supplied brass buckles using ultrasonic energy. With the products successful on the buffing compound, the next step will be to evaluate these cleaners on supplied additional parts at or after workshop.