Laboratory evaluations of alternative aerosol cleaning products
Date Run:
10/12/2006
Experiment Procedure:
Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning.
Seven products were selected for testing based on equipment compatibility and soil removal. The six products were used at full strength in 250 ml beakers, one product was used at 5% and another at 25%. Both dilutions were made with DI water in 600 ml beakers. Products were used at room temperature. Twenty-one preweighed aluminum coupons were coated with a collection of brake/engine soil collected from an automobile shop. The coupons were allowed to sit for several days before a second weight was recorded. Three coupons were cleaned in each solution for 5 minutes using minimal agitation from a magnetic stir bar. Coupons were then rinsed in tap water for 15 seconds and dried using air blow off at room temperature for 30 seconds. Following drying, final weights were recorded and cleaning efficiencies were calculated.
Trial Results:
The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Solsafe 245
0.5652
0.0978
82.70
0.7022
0.0628
91.06
0.6891
0.1613
76.59
Polyspray Jet 790 P
0.7052
0.6415
9.03
0.7512
0.6341
15.59
0.7286
0.7247
0.54
Inproclean 4000 T
0.6550
0.4985
23.89
0.5046
0.3748
25.72
0.5013
0.3329
33.59
Soy Gold 2000
0.6691
0.1737
74.04
0.6924
0.2721
60.70
0.5639
0.2288
59.43
Soy Gold 1000
0.4381
0.1688
61.47
0.4884
0.2542
47.95
0.5974
0.1700
71.54
Formula 180 D
0.7346
0.6544
10.92
0.6540
0.4955
24.24
1.1044
0.9722
11.97
Actisolv
0.4437
0.3976
10.39
0.7289
0.6769
7.13
0.9546
0.9009
5.63
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.
Conclusion:
Three products were moderately successful in removing the brake/engine grease-oil mix using immersion cleaning at room temperature and will be used in the next round of aerosol testing.
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