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Trial Number 9

Trial Purpose:

To evaluate three supplied products for bathroom cleaning as part of three part experiment to evaluate product at one concentration for multiple cleaning tasks.

Date Run:

06/02/2011

Experiment Procedure:

The selected cleaning products were used at the recommended concentration (2.4%). Pre-weighed chrome, ceramic and fiberglass, coupons were coated with SSL Soil 2 (Bathroom soap scum: All-in-one shampoo and conditioner, Dry skin lotion, Liquid hand soap, Liquid body wash, Deodorant bar soap and water) using a hand held 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). In this test, coupon was not rinsing and wiped after cleaning process to represent the realistic cleaning performance. Final weights were recorded and efficiencies were calculated and recorded.

Trial Results:

One of the selected product (MD Stetson 101) removed over 90% of the bathroom soap scum soil from the surfaces using manual cleaning. The other products removed 83% of the bathroom soap scum. Visually, all bathroom sumps were removed clearly, but some of the cleaner residue were remained on coupons. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner  Initial wt Final wt % Removed
MD Stetson 220 chrome      
  0.0472 0.0016 96.61
  0.0488 0.0014 97.13
  0.1050 0.0012 98.86
MD Stetson 220 Ceramic       
  0.0888 0.0224 74.77
  0.0541 0.0008 98.52
  0.0411 0.0159 61.31
MD Stetson 220 Fiberglass       
  0.1938 0.0478 75.34
  0.1610 0.0470 70.81
  0.1992 0.0433 78.26
DFE 401 chrome      
  0.0515 0.0059 88.54
  0.0494 0.0043 91.30
  0.1169 0.0017 98.55
DFE 401 Ceramic       
  0.1388 0.0359 74.14
  0.1087 0.0278 74.43
  0.1518 0.0241 84.12
DFE 401 Fiberglass       
  0.2166 0.0456 78.95
  0.1825 0.0391 78.58
  0.1670 0.0437 73.83
MD Stetson 101      
  0.0606 0.0056 90.76
  0.0506 0.0040 92.09
  0.1238 0.0044 96.45
MD Stetson 101 Ceramic       
  0.1245 0.0002 99.84
  0.0868 0.0001 99.88
  0.0582 0.0003 99.48
MD Stetson 101 Fiberglass       
  0.1904 0.0235 87.66
  0.0822 0.0291 64.60
  0.1645 0.0237 85.59

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The MD Stetson PC 101 Neutral & Glass Cleaner  had an overall average efficiency over 90% and performed better than the both the comparative products. This product also was the most effective on the all purpose soil. Next phase will be to evaluate products on glass cleaning at the same concentration.

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