To evaluate supplied products for GS 37 bathroom cleaner performance.
Date Run:
01/14/2010
Experiment Procedure:
The supplied cleaning products were used at the requested concentration and a third product (conventional) was used at full strength as recommended by the vendor for bathroom cleaning.
Preweighed ceramic, chrome 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 Kimberly Clark Reinforced paper towel 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. Efficiencies were calculated and recorded.
Trial Results:
The two supplied products removed over 85% of the bathroom soap scum soil from all surfaces except one (One of the two products removed 80% from the chrome surface). The supplied conventional product removed less than 50% of the soil from the surfaces. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
DFC Restroom Ceramic
0.2518
0.0254
89.91
0.2647
0.0105
96.03
0.2939
0.0224
92.38
DFC Restroom Chrome
0.2400
0.0545
77.29
0.2567
0.0325
87.34
0.2143
0.0465
78.30
DFC Restroom Fiberglass
0.1850
0.0202
89.08
0.2799
0.0138
95.07
0.1992
0.0162
91.87
DFC Clacium Lime Rust Ceramic
0.3295
0.0071
97.85
0.3184
0.0163
94.88
0.3656
0.0223
93.90
DFC Calcium Lime Rust Chrome
0.1534
0.0056
96.35
0.1394
0.0027
98.06
0.1067
0.0060
94.38
DFC Calcium Lime Rust Fiberglass
0.1857
0.0091
95.10
0.2639
0.0121
95.41
0.2325
0.0036
98.45
Soft Scrub Ceramic
0.1819
0.0558
69.32
0.0961
0.0886
7.80
0.3835
0.1673
56.38
Soft Scrub Chrome
0.0523
0.0233
55.45
0.1020
0.0878
13.92
0.1225
0.0761
37.88
Soft Scrub Fiberglass
0.1468
0.0798
45.64
0.3632
0.1078
70.32
0.1415
0.0261
81.55
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The DFC Restroom and Calcium, Lime & Rust cleaners removed over 85% of the SSL Bathroom soap scum using manual cleaning. Both outperformed the supplied conventional product on the same soil.
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