To evaluate the effectiveness for the removal of Huckers soil from ceramic, painted metal, and plastic using Earth Essentials cleaner.
Date Run:
11/18/2021
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.
Conclusion:
Earth essentials was effective at removing Huckers soil from ceramic substrate and left minimal soil on painted metal and plastic.
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