To evaluate the effectiveness of three low foam cleaners at removing canola oil, expoxidized soybean oil, and SAS-60E from aluminum and ceramic coupons.
Date Run:
08/28/2019
Experiment Procedure:
Fifty-four pre-weighed coupons, eighteen for each cleaner, were soiled with Canola Oil, Soybean Oil, and SAS 60E using a clean swab. Each set of coupons was immersed in a 250mL beaker with the diluted cleaners for one minute at the vendor recommended temperature. Coupons were then transferred to a (140F) heated rinse for one minute before getting an additional one-minute dry with an air gun. Observations were made and final weights were recorded.
Trial Results:
Cleaner
Soil
Substrate
Initial Wt. of Cont.
Final Wt. of Cont.
% Cont. Removed
% Average
SC Aircraft & Metal
Canola Oil
Aluminum
0.2491
0.0301
87.92
90.33
0.2409
0.0093
96.14
0.2781
0.0363
86.95
Ceramic
0.2552
0.0112
95.61
93.29
0.2829
0.0241
91.48
0.1859
0.0134
92.79
Soybean Oil
Aluminum
0.3118
0.0716
77.034
82.80
0.3032
0.0333
89.02
0.2926
0.0516
82.36
Ceramic
0.2182
0.0174
92.02
93.83
0.2629
0.0197
92.51
0.2498
0.0076
96.96
SAS-60E
Aluminum
0.3004
0.0246
91.81
90.75
0.2961
0.0145
95.10
0.186
0.0273
85.32
Ceramic
0.229
0.0155
93.23
96.07
0.3552
0.0139
96.09
0.1962
0.0022
98.88
LF2100
Canola Oil
Aluminum
0.2994
0.0181
93.95
93.17
0.3714
0.0122
96.71
0.2799
0.0312
88.85
Ceramic
0.3887
0.005
98.71
97.31
0.2018
0.0053
97.37
0.2616
0.0108
95.87
Soybean Oil
Aluminum
0.259
0.1128
56.45
55.01
0.2114
0.1127
46.69
0.2314
0.0882
61.88
Ceramic
0.2017
0.0024
98.81
97.57
0.3269
0.0173
94.71
0.2441
0.002
99.18
SAS-60E
Aluminum
0.2329
0.0041
98.24
90.29
0.2252
0.0483
78.55
0.2623
0.0155
94.09
Ceramic
0.2623
0.004
98.47
96.85
0.2555
0.0029
98.86
0.2237
0.0152
93.20
Aquavantage 3800 GD
Canola Oil
Aluminum
0.2811
0.0698
75.17
76.08
0.2339
0.083
64.51
0.2106
0.0241
88.56
Ceramic
0.2448
0.0855
65.07
73.34
0.1772
0.0767
56.71
0.1917
0.0034
98.23
Soybean Oil
Aluminum
0.2358
0.1218
48.345
56.42
0.2548
0.077
69.78
0.2835
0.1385
51.15
Ceramic
0.2827
0.0225
92.04
70.62
0.1959
0.1346
31.29
0.2522
0.0289
88.54
SAS-60E
Aluminum
0.2006
0.0032
98.40
96.93
0.2271
0.0069
96.96
0.2185
0.0100
95.42
Ceramic
0.2466
0.0769
68.81
88.97
0.2169
0.0040
98.15
0.1998
0.0001
99.95
Cleaner Visual Observations
Cleaner
Substrate
Soil
Observation
Rinse
SC Aircraft & Metal Cleaner
Aluminum
Canola Oil
- no change
- oil spots
Soybean Oil
- no change
- oil spots
SAS-60E
- no change
- strong odor
Ceramic
Canola Oil
- small amount of bubbles of coupon
- no change
Soybean Oil
- small amount of bubbles of coupon
- no change
SAS-60E
- small amount of bubbles of coupon
- strong odor
LF2100
Aluminum
Canola Oil
- sizzling sound/bubbles
- oil and bubbles at top
Soybean Oil
- foam line along top of coupon
- dilution turned cloudy
SAS-60E
- thin foam layer at top of dilution
- very strong odor
Ceramic
Canola Oil
- oil spots at top of dilution
- thin oil layer at top
Soybean Oil
- oil spots at top of dilution
- thin oil layer at top
SAS-60E
- oil spots at top of dilution
- oil layer/strong odor
Aquavantage 3800 GD
Aluminum
Canola Oil
- dilution cloudy/oil spots floating
- no change
Soybean Oil
- no change
SAS-60E
- no change
- strong odor
Ceramic
Canola Oil
- no change
- no change
Soybean Oil
- no change
- no change
SAS-60E
- no change
- strong odor
LF2100 and Aquavantage 3800 GD had lesser overall averages due to their lack of performance on the expoxidized soybean oil. SC Aircraft & Metal Cleaners had more consistent results with all of the substrates and soils.
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
SC Aircraft & Metal cleaner yielded the best results in removing the three tested soils. Although the acquired results don’t show 100% removal, adding high-pressure agitation will likely lead to even higher overall averages than shown for all of the cleaners tested.
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