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Trial Number 7

Trial Purpose:

To evaluate the effectiveness of identified low flammability solvents in removing Royco 27A grease and Glyconol Wax.

Date Run:

11/16/2023

Experiment Procedure:

Three solvents were chosen using previous testing data on their low flammability.  Six (three per soil type) pre weighed aluminum coupons were assigned to each solvent for each substrate for a total of 18 aluminum coupons. Half 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 were soiled with the Royco 27A grease (about 0.5 grams) by spreading on 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
Anisole Royco 27A grease 0.0664 0.0020 96.99 98.04 74.81
0.1013 0.0024 97.63
0.0584 0.0003 99.49
Glyconol Wax 0.1369 0.1063 22.35 51.59
0.1580 0.0565 64.24
0.1748 0.0556 68.19
Dimethyl Glutarate Royco 27A grease 0.0843 0.0763 9.49 33.92 31.97
0.0857 0.0583 31.97
0.0776 0.0308 60.31
Glyconol Wax 0.1521 0.1179 22.49 30.01
0.1355 0.0862 36.38
0.1646 0.1133 31.17
Triethyl Phosphate Royco 27A grease 0.1240 0.0503 59.44 71.74 66.28
0.1189 0.0152 87.22
0.1203 0.0378 68.58
Glyconol Wax 0.1194 0.0137 88.53 60.82
0.1294 0.0256 80.22
0.2369 0.2044 13.72

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

Anisole is highly effective in removing Royco 27A grease.  It is not effective in removing the Glyconol Wax.  Neither the Dimethyl Glutarate or Triethyl Phosphate were effective in removing either soil.  

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