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. Ten 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 graphite 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
Sea wash
0.0083
0.0078
6.02
0.0067
0.0049
26.87
1.0046
0.0038
99.62
Simple Green
0.0044
0.0041
6.82
0.0073
0.0080
-9.59
0.0038
0.0031
18.42
Micro 90
0.0037
0.0090
-143.24
0.0049
0.0052
-6.12
0.0061
0.0083
-36.07
Sc Aircraft &Metal
0.0020
0.0018
10.00
0.0054
0.0052
3.70
0.0083
0.0404
-386.75
Sky Gold 1000
-0.9965
0.0297
102.98
0.0074
0.0638
-762.16
0.0076
0.0185
-143.42
Maxisolv
0.0035
0.0098
-180.00
0.0091
0.0125
-37.36
0.0033
0.0062
-87.88
SWR One
0.0038
0.1547
3971.05
0.0035
-0.1436
4202.86
0.0126
0.0143
-13.49
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.
Conclusion:
Results were inconclusive with many of the products have erratic removal rates.
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