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Trial Number 42

Trial Purpose:

To test the effectiveness of Comet Cleaner with Bleach in the removal of Hucker's Soil from various substrates.

Date Run:


Experiment Procedure:

Comet Cleaner with Bleach and a spray bottle of water were gathered to begin testing. Then, 3 coupons of each substrate (ceramic, plastic, painted metal) were collected and initial weights were taken. Hucker's Soil (Creamy Peanut Butter, Salted Butter, Wheat gluten, Egg Yolk, Evaporated milk, DI water, Printer's ink with boiled linseed oil, India Ink, Saline Solution) was applied to each coupon and allowed to air dry for 2 hours. After the 2 hour dry time, the weights of the newly contaminated coupons were measured. All coupons were placed into a Gardner-scrub Abrasion Tester machine. Wypall cleaning cloths were attached to each of the 3 cleaning blocks used for the test. Each Wypall cloth and all coupons received 2 sprays of water and Comet Cleaner with Bleach was sprinkled across each coupon. The Gardner-scrub Abrasion Tester 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:

Cleaner Substrate Initial wt of cont. Final wt of cont. %Cont Removed % AVG % Overall
Comet Cleaner with Bleach Ceramic 0.2386 0.0137 94.26 90.29 89.19
0.2508 0.0312 87.56
0.2892 0.0215 92.57
Plastic 0.2680 0.0354 86.79 83.89
0.3154 0.0583 81.52
0.3838 0.0638 83.38
Painted Metal 0.4333 0.0241 94.44 93.37
0.4295 0.0327 92.39
0.5268 0.0354 93.28

Success Rating:

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


Comet Cleaner with Bleach was successful in the removal of Hucker's Soil from ceramic, plastic, and painted metal substrates. 

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