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Trial #1

Trial #1

To evaluate the effectiveness of multiple cleaners in removing both the grease and wax contaminants from aluminum coupons.

2023

31

2

0

0

Coupon

09/27/2023

0.00

Ultrasonics

Alexander Symko
Amelia Wagner

Aluminum

Greases
Waxes

None

None

Gravimetric

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.

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

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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