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Trial Number 12

Trial Purpose:

The purpose of this experiment was to test the effectiveness of 4 cleaners in removing Vanishing Oil from cold rolled steel coupons provided by the company and comparing the contact angles to solvent cleaned coupons.

Date Run:


Experiment Procedure:

Four cold rolled steel coupons provided by the company were obtained for each of the cleaners being tested. Cleaners were prepared to the following concentrations: Liquinox 1%, Surface Cleanse 930 5%, Sta Sol ESS 160 100%, and Smart Solve 605 100%. Cleaners were heated to 100°F. An initial weight was obtained for each coupon, then coupons were soiled with the Vanishing Oil and a dirty weight was recorded. When solutions reached the proper temperature, coupons were submerged into their respective cleaners for 15 minutes. After 15 minutes had passed, coupons we placed into a deionized water bath at 100°F for 30 seconds. Coupons were then dried with an air gun on the cool setting. Once dried, clean weights were obtained, and three contact angles were determined and averaged together for each coupon. Effectiveness of the cleaners was then determined.

Trial Results:

Cleaner Initial wt of cont Final wt of cont %Cont Removed Contact Angle Average Contact Angle
Liquinox 0.0129 0.0056 56.59 55.02 52.08
Surface Cleanse 930 0.0098 0.0090 8.16 5.15 4.94
Sta Sol ESS 160 0.0149 0.0024 83.89 55.04 40.55
Smart Solve 605 0.0143 0.0027 81.12 1.23 5.45

Success Rating:

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


Sta Sol ESS 160 had the highest % removal of soil at 83.89%. However, no cleaner was able to reach an average contact angle value to surpass the current solvent. Next steps would be to reevaluate the list of cleaners to determine more options.

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