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Trial Number 380

Trial Purpose:

Laboratory evaluations of alternative aerosol cleaning products

Date Run:

12/08/2006

Experiment Procedure:

Six products were selected for testing based on previous testing on the selected soil. All products were diluted to 10% using DI water and 500 mls were poured into the EnviroCaddie aerosol spray system and pressurized to just under 95 psi using Nitrogen.

Eighteen preweighed aluminum coupons were coated with a collection of brake/engine soil collected from an automobile shop. The coupons were allowed to sit for one day before a second weight was recorded. Three coupons were cleaned with each solution for 30 seconds via the aerosol spray system. Coupons were not rinsed and were air dried at room temperature for 5 minutes. Following drying, final weights were recorded and cleaning efficiencies were calculated.

Trial Results:

All six products removed over 80% of the oil-grease-dirt mix using the EnviroCaddie aerosol system. One product. Phase III California Parts Washer removed just under 95%. The Sea Wash Blue had the smallest flow pattern making cleaning slightly more difficult

The table below lists the amount of soil applied, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Aquavantage 1400 0.4578 0.0629 86.26
  0.4536 0.0567 87.5
  0.4519 0.1292 71.41
Daraclean 282 0.3299 0.0232 92.97
  0.2143 0.0475 77.83
  0.5490 0.0621 88.69
Inproclean 3800 0.3846 0.0226 94.12
  0.1686 0.0342 79.72
  0.3825 0.0245 93.59
California Parts Washer 0.4748 0.0141 97.03
  0.2192 0.0151 93.11
  0.5382 0.0342 93.65
Eliminator 0.1351 0.0248 81.64
  0.4197 0.0508 87.90
  0.4069 0.0536 86.83
Sea Wash Blue 0.4847 0.0643 86.73
  0.5675 0.0569 89.97
  0.8017 0.0720 91.02

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

Conclusion:

The aqueous based products showed positive results for aerosol cleaning using an EnviroCaddie System. These products my require slightly longer cleaning times to achieve comparable results to the solvent based aerosol cleaners. It also was noted that the sprayed solution could be collected, filtered and then reused in the EnviroCaddie.

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