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Trial Number 24

Trial Purpose:

To evaluate the effectiveness of the removal of glass soil from chrome, mirror, and glass using Earth Essentials cleaner.

Date Run:


Experiment Procedure:

Three coupons of each substrate (chrome, glass, and mirror) were collected and initial weights were taken. Glass soil was applied to each coupon and allowed to air dry for 24 hours. After the 24 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 was most effective for the removal of glass soil on glass with a 102% removal. Chrome had a 93% removal and mirror had 88% removal. No glass soil was left on the surface of the substrates. 

Substrate Initial wt. of cont. Final wt. of cont Average Combined Average
Chrome 0.0393 0.0055 86.01 93.42
0.0676 0.0042 93.79
-0.9731 0.0045 100.46
Mirror 0.0455 0.0045 90.11 87.65
0.0446 0.0048 89.24
0.0415 0.0068 83.61
Glass 0.0532 -0.0004 100.75 102.00
0.0376 -0.0009 102.39
0.0457 -0.0013 102.84

Success Rating:

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


Earth Essentials Cleaner was effective for the removal of glass soil from all three substrates.

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