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Trial Number 0

Trial Purpose:

To evaluate the effectiveness of Libman All-Purpose Cleaner against a comparative brand.

Date Run:

04/19/2022

Experiment Procedure:

Nine pre-weighed coupons per cleaner, three of each substrate, were contaminated with Hucker's Soil Formulation (Jiff Creamy Peanut Butter 9.2%, Salted Butter 9.2%, Arrowhead Mills stone-ground wheat flour 9.2%, Egg Yolk 9.2%, Evaporated milk 13.8%, Distilled water 45.8%, Printer's ink with boiled linseed oil 0.9%, Shaws saline Solution 2.7%) using a handheld swab and dried for two hours at room temperature (68 F). The contaminated coupons were weighed before placing three coupons per cleaner of the same substrate into a Gardner Straight Line Washability (SLW) unit. A Kimberly-Clark Wypal reinforced paper towel was attached to the cleaning sled. The Wypal and each coupon were treated with three sprays and cleaned for 20 cycles (~30 seconds of cleaning). Clean coupons dried for 24 hours before final weights were taken.

Trial Results:

Libman All-Purpose was more effective than Weiman Cooktop at removing Hucker's soil from ceramic, painted metal, and plastic. The overall percent removal average for Libman All Purpose was 97.63% while Weiman Cooktop Cleaner had an overall average of 94.85%.

Cleaner Substrate Initial Wt of Cont. Final Wt. of Cont. %Cont Removed %Average Overall %Average
Weiman Cooktop Cleaner Ceramic 0.0737 0.0053 92.81 93.25 94.85
0.0736 0.0060 91.85
0.0714 0.0035 95.10
Plastic 0.1825 0.0046 97.48 97.92
0.1052 0.0027 97.43
0.2682 0.0031 98.84
Painted metal 0.0882 0.0097 89.00 93.37
0.1156 0.0065 94.37
0.2011 0.0066 96.72
Libman All-Purpose Ceramic 0.0869 0.0023 97.35 96.92 97.63
0.1122 0.0017 98.48
0.0511 0.0026 94.91
Plastic 0.2539 0.0007 99.72 98.70
0.2219 0.0005 99.77
0.1617 0.0055 96.60
Painted metal 0.1777 0.0070 96.06 97.28
0.2165 0.0048 97.78
0.1900 0.0038 98.00

Success Rating:

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

Conclusion:

Libman All-Purpose Cleaner was more effective than Weiman Cooktop Cleaner at removing Hucker's soil from ceramic, painted metal, and plastic.

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