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Trial Number 2

Trial Purpose:

To evaluate third supplied buffing compound with the previously tested products.

Date Run:

08/24/2006

Experiment Procedure:

The top four products from the previous trial were diluted to 5% in 250 ml beakers using DI water and heated to 130 F.

Twelve preweighed coupons were coated with the brown buffing compound using a handheld swab after heating. Coupons were weighed a second time to determine the amount of buffing compound added. Three coupons were cleaned in each solution for five minutes minimal agitation in an immersion tank. Coupons were rinsed for 15 seconds in a tap water bath at 120 F and dried using a dry compressed air for 30 seconds. Once dry coupons were weighed a final time and product efficiencies were calculated.

Trial Results:

Only one product, Polyspray Jet 790 XS removed over 70% of the brown buffing compound with immersion cleaning. The following table lists the amount of buffing compound applied, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
XL 100 0.1615 0.1289 20.19
  0.2366 0.1888 20.20
  0.5003 0.4542 9.21
MC 132 0.3288 0.2346 28.65
  0.1505 0.0826 45.12
  0.2272 0.0971 57.26
Inproclean 3800 0.1672 0.1323 20.87
  0.2443 0.1997 18.26
  0.1702 0.1149 32.49
Polyspray Jet 790 XS 0.1843 0.0534 71.03
  0.0859 0.0187 78.23
  0.1937 0.0689 64.43

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

A follow up test will be conducted using ultrasonic energy in an attempt to improve cleaning efficiencies.

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