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Trial Number 0

Trial Purpose:

To evaluate selected aqueous based cleaning products for buffing compound removal.

Date Run:

08/18/2004

Experiment Procedure:

Eight alternative aqueous products were selected from the laboratory's database of test results based on client specific information. Each product was diluted to 5% using DI water in 600 ml beakers and heated to 130F on a hot plate.
Twenty-four preweighed CDA260 Brass coupons were coated with the Matchless Metal Polishing Company K55-278 Liquid Tripoli Buffing compound (1317-85-8) using a hand held swab. Coupons were allowed to sit overnight and weighed a second time to determine the amount of soil added to each coupon. Three coupons were cleaned in each product for 5 minutes using stir-bar agitation. Coupons were rinsed for 15 seconds in tap water at 120F and dried for 30 seconds using air blow off at room temperature. Once coupons were dry, final weights were recorded and efficiencies were calculated.

Trial Results:

Some of the products started to show signs of removing the buffing compound after the five minutes of immersion cleaning. However none of the products removed over 75% contaminant. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
KPC 820 N 0.4778 0.4298 10.05
  0.4582 0.3664 20.03
  0.7620 0.6614 13.20
Aquavantage 1400 GD 0.4840 0.3099 35.97
  0.3186 0.1450 54.49
  0.3690 0.2081 43.60
Shopmaster LpH 0.3856 0.2743 28.86
  0.3254 0.2431 25.29
  0.2767 0.2240 19.05
SC Aircraft & Metal 0.3526 0.3246 7.94
  0.2869 0.2077 27.61
  0.2231 0.1549 30.57
Micro 90 0.4195 0.3228 23.05
  0.3150 0.2187 30.57
  0.4062 0.3236 20.33
Inproclean 3800 0.3655 0.1044 71.44
  0.5178 0.1798 65.28
  0.3585 0.1534 57.21
Beyond 2003 0.4341 0.1292 70.24
  0.4077 0.2301 43.56
  0.3751 0.2036 45.72
Polyspray Jet 790 P 0.3851 0.2631 31.68
  0.4166 0.2360 43.35
  0.3900 0.2014 48.36

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 products with efficiencies over 40% will be evaluated next using ultrasonic energy.

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