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Trial Number 1

Trial Purpose:

To evaluate successful products on second supplied buffing compound.

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 red buffing compound using a hand held 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:

All four products removed over 70% of the buffing compound with immersion cleaning. One product, Polyspray Jet 790 XS, removed over 95%. 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 0.2979 0.0883 70.36
  0.3582 0.1140 68.17
  0.2243 0.0537 76.06
MC 132 0.2596 0.0469 81.93
  0.2944 0.0255 91.34
  0.3574 0.0712 80.08
Inproclean 3800 0.3939 0.1331 66.21
  0.1723 0.0383 77.77
  0.1669 0.0540 67.65
Polyspray Jet 790 XS 0.1423 0.0033 97.68
  0.1444 0.0024 98.34
  0.1938 0.0100 94.84

Success Rating:

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

Conclusion:

The same four products will be used to clean the third contaminant.

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