The supplied cleaning product was used at the recommended concentration (2.5g per 16 ounces water). A comparative product was used at the ready-to-use concentration.
Preweighed chrome, ceramic and fiberglass, coupons were coated with SSL Soil 1 (Bathroom soap scum: All-in-one shampoo and conditioner 28.6%, Dry skin lotion 21.4%, Liquid hand soap 21.4%, Liquid body wash 14.3%, Deodorant bar soap 7.2% and water 7.1%.) using a handheld swab and allowed to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added.
Three coupons were placed into a Gardner Straight Line Washability unit. A Wypall X60 reinforced wipe was attached to the cleaning sled and soaked with 2-3 sprays of cleaning solutions. Each coupon was sprayed 2-3 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded, and efficiencies were calculated and recorded.
Both products removed more than 90% of the bathroom soap scum mixture using manual wiping for 30 seconds. The table lists the amount of soil added, the amount remaining and the efficiency of each coupon cleaned.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| Sunstate - ceramic
|
|
|
|
|
|
0.0639
|
0.0070
|
89.05
|
|
|
0.0343
|
0.0046
|
86.59
|
|
|
0.0113
|
0.0009
|
92.04
|
| Sunstate - plastic
|
|
|
|
|
|
0.0512
|
-0.0001
|
100.20
|
|
|
0.0347
|
0.0035
|
89.91
|
|
|
0.0281
|
0.0031
|
88.97
|
| Sunstate - chrome
|
|
|
|
|
|
0.0684
|
0.0035
|
94.88
|
|
|
0.0401
|
0.0020
|
95.01
|
|
|
0.0311
|
0.0049
|
84.24
|
| Comet - ceramic
|
|
|
|
|
|
0.0320
|
0.0015
|
95.31
|
|
|
0.0298
|
0.0017
|
94.30
|
|
|
0.0307
|
0.0019
|
93.81
|
| Comet - plastic
|
|
|
|
|
|
0.0280
|
0.0005
|
98.21
|
|
|
0.0187
|
0.0026
|
86.10
|
|
|
0.0830
|
0.0000
|
100.00
|
| Comet - chrome
|
|
|
|
|
|
0.0252
|
0.0020
|
92.06
|
|
|
0.0496
|
0.0094
|
81.05
|
|
|
0.0308
|
0.0033
|
89.29
|