The supplied cleaning product were used at the recommended concentration (2%, 2% and 1.5%). 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 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 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.
The two supplied products both removed over 85% of the bathroom soap scum soil from the surfaces using manual cleaning. The conventional product removed 75%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| PC 108(1:48)_Ceramic
|
|
|
|
|
|
0.3057
|
0.0155
|
94.93
|
|
|
0.1234
|
0.0079
|
93.6
|
|
|
0.026
|
0.0025
|
90.38
|
| PC 108(1:48)_Chrome
|
|
|
|
|
|
0.0115
|
0.0019
|
83.48
|
|
|
0.0273
|
0.0024
|
91.21
|
|
|
0.0117
|
0.0038
|
67.52
|
| PC 108(1:48)_Fiberglass
|
|
|
|
|
|
0.0216
|
0.002
|
90.74
|
|
|
0.0221
|
0.0029
|
86.88
|
|
|
0.0154
|
0.0015
|
90.26
|
| PC 220(1:128)_Ceramic
|
|
|
|
|
|
0.2548
|
0.0458
|
82.03
|
|
|
0.5427
|
0.1034
|
80.95
|
|
|
0.2379
|
0.0441
|
81.46
|
| PC 220(1:128)_Chrome
|
|
|
|
|
|
0.2916
|
0.0441
|
84.88
|
|
|
0.2952
|
0.0265
|
91.02
|
|
|
0.4028
|
0.0352
|
91.26
|
| PC 220(1:128)_Fiberglass
|
|
|
|
|
|
0.3183
|
0.0511
|
83.95
|
|
|
0.2855
|
0.023
|
91.94
|
|
|
0.3232
|
0.0514
|
84.1
|
| 3M Non acid Bathroom cleaner -Ceramic
|
|
|
|
|
|
0.3325
|
0.084
|
74.74
|
|
|
0.6008
|
0.2322
|
61.35
|
|
|
0.3427
|
0.0912
|
73.39
|
| 3M Non acid Bathroom cleaner -Chrome
|
|
|
|
|
|
0.3184
|
0.0768
|
75.88
|
|
|
0.3851
|
0.0733
|
80.97
|
|
|
0.1951
|
0.0429
|
78.01
|
| 3M Non acid Bathroom cleaner -Fiberglass
|
|
|
|
|
|
0.6121
|
0.1472
|
75.95
|
|
|
0.3844
|
0.0833
|
78.33
|
|
|
0.4439
|
0.0881
|
80.15
|