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Trial #2

Trial #2

To test the efficacy of Dr. Bronner's All-Purpose Castille Soap Dilution (aka BWG's Magic Soap) against Method Bathroom Cleaner

2025

33

1

0

0

Part

06/25/2025

0.00

Manual Wipe

Rachael Rososky
Tatyanna Moreland Junior

Ceramics
Plastic
Stainless Steel

SSL Soil 1 Bathroom Soap Scum

None

Air dry

Gravimetric

Eighteen pre-weighed coupons, three per substrate per cleaner, were contaminated with 0.5 g of SSL Soil 1 Bathroom Soap Scum. Coupons were dried at room temperature (68°F) for 24 hours before their dirty weights were recorded. Three coupons of the same substrate were placed in a Single Line Washing Unit (SLW) with a Wypall X60 wipe attached to the cleaning sled. The wipe and coupons were sprayed three times with the cleaner and soaked for 30 seconds. The SLW was then run for 20 cleaning cycles (30 seconds of manual cleaning). Coupons dried overnight at room temperature before final weights were recorded.

Cleaner Substrate Coupon # Initial wt of cont. Final wt of cont. %Cont Removed Average % Removal Average Cleaner %
Dr. Bronner's All Purpose Dilution Ceramic 6 0.2293 0.0661 71.17 72.46 68.10
17 0.2413 0.0224 90.72
51 0.2431 0.1082 55.49
Stainless Steel 1 0.2438 0.0832 65.87 63.74
36 0.2349 0.0873 62.83
10 0.2539 0.0952 62.50
Polycarbonate 2 0.2332 0.0745 68.05 61.26
5 0.2302 0.0780 66.12
22 0.2406 0.1212 49.63
Method's Bathroom Cleaner Ceramic 55 0.2421 0.0999 58.74 46.81 32.60
111 0.2365 0.1368 42.16
2121 0.2732 0.1652 39.53
Stainless Steel 13 0.2424 0.1823 24.79 18.38
14 0.2343 0.2160 7.81
32 0.2408 0.1865 22.55
Polycarbonate 24 0.2496 0.1143 54.21 55.20
31 0.2109 0.0920 56.38
34 0.2352 0.1058 55.02

Dr. Bronner's All-Purpose Castille Soap Dilution (aka BWG's Magic Soap) was more effective than Method Bathroom Cleaner on ceramic, plastic, and stainless steel.

No relation

Name Class Section
Document Evaluation #0 Evaluation 3
Document Evaluation #1 Evaluation 3
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