To evaluate the effectiveness of multiple cleaners in removing both the grease and wax contaminants from aluminum coupons.
Date Run:
09/28/2023
Experiment Procedure:
Three cleaning products were chosen using previous testing data on their performance for removing other waxes and greases. Three pre weighed aluminum coupons were assigned to each cleaner for each substrate for a total of 18 aluminum coupons. Half of the coupons were soiled with the glyconol wax soil (about 0.5 grams) by placing a small ball of wax onto the bottom third of the coupon, heating it with a heat gun to melt the wax, and then spreading the wax into a strip across the bottom third of the coupons. The other half of the coupons were soiled with the royco 27A grease (about 0.5 grams) by applying to soil to the bottom third of the coupons with a swab. After soiling, the dirty weights of the coupons were recorded. The coupons were then subjected to 20 mins of unheated ultrasonics in their respective cleaners. The coupons were left to air dry overnight before the clean weights were recorded.
Trial Results:
Cleaner
Soil
Initial wt of cont.
Final wt of cont.
%Cont Removed
% AVG
% Overall
SC Aircraft and Metal Cleaner
Glyconol Wax
0.1806
0.1091
39.59
58.42
76.64
0.0693
0.0117
83.12
0.0942
0.0447
52.55
Royco 27A Grease
0.1195
0.0068
94.31
94.86
0.1045
0.0039
96.27
0.0533
0.0032
94.00
Aerokleen Aviation Solvent
Glyconol Wax
0.0940
0.0340
63.83
46.44
48.66
0.1543
0.1463
5.18
0.0835
0.0248
70.30
Royco 27A Grease
0.0470
0.0045
90.43
50.88
0.0534
0.0521
2.43
0.0870
0.0350
59.77
Aquavantage 815GD
Glyconol Wax
0.2192
0.1712
21.90
14.56
59.90
0.2052
0.1838
10.43
0.1135
0.1006
11.37
Royco 27A Grease
0.1098
0.0628
42.81
45.37
0.0768
0.0410
46.61
0.0713
0.0380
46.70
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 and Metal Cleaner is an effective cleaner in removing the royco grease but not effective in removing the wax. Aerokleen Aviation Solvent and Aquavantage 815GD are not effective cleaners in removing either soil.
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