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Trial Number 0

Trial Purpose:

To evaluate selected products for removing first supplied buffing compound using immersion cleaning

Date Run:

08/31/2006

Experiment Procedure:

Eight alternative products were selected from the lab's database of testing results based on supplied client information. Products were selected based on buffing compound removal potential and compatibility with brass metal substrates. Each product was diluted to 5% in 250 ml beakers using DI water and heated to 130 F on a hot plate.

Twenty-four preweighed coupons were coated with the brown buffing compound using a handheld swab. Coupons were weighed a second time to determine the amount of buffing compound added. Three coupons were cleaned in each solution for five minutes using minimal stir bar agitation. 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:

Four products removed over 80% of the buffing compound from the brass coupons after five minutes of 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 0.1546 0.0863 44.18
  0.1222 0.0472 61.37
  0.1883 0.1275 32.29
MC 132 0.1518 0.0136 91.04
  0.1152 0.0037 96.79
  0.1937 0.0547 71.76
Inproclean 3800 0.1355 0.0500 63.10
  0.1118 0.0481 56.98
  0.1526 0.0835 45.28
Polyspray Jet 790 XS 0.1198 0.0012 99.00
  0.1533 0.0115 92.50
  0.0857 0.0028 96.73
Daraclean 283 0.1416 0.0173 87.78
  0.1182 0.0181 84.69
  0.1004 0.0146 85.46
Texolite 1734 XL 0.1466 0.1086 25.92
  0.1081 0.0430 60.22
  0.1083 0.0397 63.34
Prepaint 0.0828 0.0695 16.06
  0.0990 0.0577 41.72
  0.0954 0.0691 27.57
Gillite 0650 CI 0.1059 0.0209 80.26
  0.0833 0.0122 85.35
  0.0960 0.0172 82.08

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 four successful products will be used on the next supplied buffing compound.

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