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Trial Number 2

Client Number 514

Project Number 2

Trial Purpose:

To evaluate the effectiveness of multiple cleaners in removing both a grease soil from aluminum coupons and a wax soil from composite fiberglass coupons.

Date Run:

10/02/2023

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 and three pre weighed fiberglass composite coupons were assigned to each cleaner for each substrate for a total of 18  coupons.  The fiberglass composite couponswere 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 aluminum 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 heated ultrasonics at 130 degrees F 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 on Fiberglass 0.0491 0.0549 -11.81 31.16 62.32
0.1498 0.1114 25.63
0.1637 0.0333 79.66
Royco 27A Grease on Aluminum 0.0819 0.0066 91.94 93.47
0.0890 0.0061 93.15
0.1284 0.0060 95.33
Aerokleen Aviation Solvent Glyconol Wax on Fiberglass 0.1192 0.0201 83.14 89.91 93.86
0.0773 0.0050 93.53
0.1166 0.0081 93.05
Royco 27A Grease on Aluminum 0.1282 0.0032 97.50 97.80
0.0891 0.0026 97.08
0.1090 0.0013 98.81
Soyclear 1500 Glyconol Wax on Fiberglass 0.0929 0.0031 96.66 94.98 90.02
0.0486 0.0049 89.92
0.0672 0.0011 98.36
Royco 27A Grease on Aluminum 0.0671 0.0176 73.77 85.06
0.0623 0.0067 89.25
0.0779 0.0061 92.17

Although both the Aerokleen Aviation Solvent and the Soyclear 1500 removed a high percentage of the wax from the fiberglass coupons, some of the wax visibly remained on the coupons.  

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 Soyclear 1500 are effective cleaners in removing the grease soil from the aluminum coupons, and are both somewhat effective cleaners in removing the wax soil from the fiberglass coupons.

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