To remove graffiti from stainless steel using immersion cleaning
Date Run:
03/10/2009
Experiment Procedure:
Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning.
Products were selected based on the compatibility of substrate and for removal of the contaminant. Five percent concentrations were used and heated the samples at 130F. The coupons were immersed in a product for 5 minutes, rinsed in tap water at 120 F and dried using compressed air at room temperature. Coupons were coated with the contaminant using a handheld swab and allowed to dry for 120 minutes at room temperature. The contaminated coupons were weighed again to determine the amount of soil added. After cleaning process, the final weights were recorded, efficiencies were calculated and recorded.
Trial Results:
Cleaner
Initial Wt.
Final Wt.
% Removed
Shopmaster
0.3151
0.0008
99.75
0.0154
-0.0001
100.65
0.0109
0.0057
47.71
Citranox
0.0817
0.0576
29.5
0.0415
0.0342
17.59
0.0197
0.0077
60.91
Coil Bright
0.1169
0.0576
50.73
0.0465
0.0187
59.78
0.0511
0.0208
59.3
Soy Strong
0.0157
0.008
49.04
0.0194
0.0186
4.12
0.0171
0.0031
81.87
Inproclean 3800
0.015
0.0106
29.33
0.0162
0.0027
83.02
0.0632
0.0181
71.36
Graffiti Remover
0.1507
0.0294
80.49
0.0235
0.0034
85.53
0.0415
0.0187
54.94
Metal Bright
0.499
0.4507
9.68
0.2321
0.2004
13.66
0.1772
0.1301
26.58
Phosphoric Acid Cleaner #1
0.1612
0.1597
0.93
0.1567
0.1049
33.06
0.0919
0.0355
61.37
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.
Conclusion:
No product removed over 85% of the graffiti from stainless steel using immersion cleaning.
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