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Trial Number 0

Trial Purpose:

To evaluate selected products on first supplied buffing compound

Date Run:

10/16/2006

Experiment Procedure:

Five 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.
Fifteen preweighed coupons were coated with the Matchless Metal Polishing TSX Tripoli (1317-95-9) buffing compound by heating the buffing compound and rubbing it onto the surface of the coupons. 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:

One product removed over 95% of the buffing compound from the brass coupons after five minutes of immersion cleaning. Two other products removed around 70%. The last two products removed under half of the buffing compound. 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
Polyspray Jet 790 XS 0.3110 0.1351 56.56
  0.1569 0.0204 87.00
  0.1025 0.0349 65.95
MC 132 0.4157 0.3699 11.02
  0.4094 0.3444 15.88
  0.2203 0.2040 7.40
Detergent 8 0.0872 0.0069 92.09
  0.0880 0.0038 95.68
  0.1395 0.0001 99.93
Inproclean 3800 0.0278 0.0010 96.40
  0.4676 0.4506 3.64
  0.1828 0.1359 25.66
Micro 90 0.0280 0.0017 93.93
  0.1611 0.0899 44.20
  0.0922 0.0042 95.44

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 three successful products will be retested at a higher temperature and/or higher concentrations to improve the cleaning efficiencies.

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