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Trial Number 26

Trial Purpose:

To evaluate the effectiveness for the removal of Huckers soil from ceramic, painted metal, and plastic using Earth Essentials cleaner.

Date Run:


Experiment Procedure:

Three coupons of each substrate (ceramic, painted metal, and plastic) were collected and initial weights were taken. Huckers soil was applied to each coupon and allowed to air dry for 24 hours. After the 2 hour dry time, the weights of the newly contaminated coupons were measured. All coupons were placed into a Straight-Line Washability (SLW) machine. A KC Wypall cleaning cloth was attached to the cleaning block used for the test. The Wypall cloth and all coupons received 2 sprays of the Earth Essentials Cleaner and the SLW machine was run for 20 repetitions, simulating 20 manual wipes. Once cleaning concluded, the cleaned coupons were allowed to air dry for 24 hours. After 24 hours, the weights of the cleaned coupons were measured. 

Trial Results:

Earth Essentials performed best on ceramic with a removal average of 85%. Both painted metal and plastic had a removal average of 82%. There was minimal soil left on the surface of the coupons.

Substrate Initial wt. of cont. Final wt. of cont Average Combined Average
Ceramic 0.0734 0.0107 85.42 84.89
0.0751 0.0107 85.75
0.0685 0.0113 83.50
Painted Metal 0.0753 0.0162 78.49 82.13
0.0801 0.0163 79.65
0.1216 0.0143 88.24
Plastic 0.1008 0.0159 84.23 82.24
0.0761 0.0157 79.37
0.0682 0.0115 83.14

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.


Earth essentials was effective at removing Huckers soil from ceramic substrate and left minimal soil on painted metal and plastic. 

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