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Trial Number 21

Trial Purpose:

To evaluate supplied products for glass cleaning using manual cleaning

Date Run:

03/16/2010

Experiment Procedure:

Preweighed chrome and three glass coupons were coated with SSL Soil 2 (Glass soap scum: Water 51.5%, Hair gel 25.6%, Toothpaste 10.4%, Shaving cream 5.3%, Hair spray 3.7% and Spray deodorant 3.5%) 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 5 cycles (~10 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded and efficiencies recorded.

Trial Results:

All three supplied products removed over 98% of the glass soap scum using manual cleaning. One product had filming and spotting levels below the acceptable level from Green Seal. The other two products had better results than the conventional product for filming and streaking. 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 101 glass 0.0512 -0.0010 101.95
  0.0457 0.0009 98.03
  0.0395 0.0005 98.73
       
PC 101 mirror 0.0678 0.0011 98.38
  0.0527 0.0008 98.48
  0.0601 0.0030 95.01
       
PC 120 glass 0.0415 0.0001 99.76
  0.0345 -0.0005 101.45
  0.0299 0.0005 98.33
       
PC 120 mirror 0.0683 0.0012 98.24
  0.0403 0.0009 97.77
  0.0436 0.0003 99.31
       
PC 220 glass 0.0188 -0.0001 100.53
  0.0205 0.0004 98.05
  0.0270 0.0007 97.41
       
PC 220 mirror 0.0327 0.0003 99.08
  0.0339 0.0004 98.82
  0.0356 0.0011 96.91
       
Vision glass 0.0417 0.0002 99.52
  0.0335 0.0001 99.70
  0.0291 0.0008 97.25
       
Vision mirror 0.0511 0.0007 98.63
  0.0333 0.0004 98.80
  0.0383 0.0012 96.89

Visual

Cleaner Film 1 Film 2 Film ave Spot 1 Spot 2 Spot Ave
PC 101 glass 3 3 4.8 2 2 3.5
  5 4   5 4  
  6 5   5 5  
             
PC 101 mirror 7 4   3 4  
  6 5   4 3  
  5 5   3 2  
             
PC 120 glass 2 2 3.5 4 3 3.2
  3 2   4 3  
  2 3   2 3  
             
PC 120 mirror 4 3   4 3  
  6 5   3 2  
  6 4   4 3  
             
PC 220 glass 2 1 2.6 1 1 2.3
  1 1   1 1  
  1 2   1 2  
             
PC 220 mirror 4 3   3 3  
  6 4   4 2  
  3 3   5 4  
             
Vision glass 6 3 5.3 2 2 3.6
  5 4   2 2  
  6 5   4 3  
             
Vision mirror 6 5   4 4  
  6 6   4 3  
  7 5   7 6  

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The three products had an overall average removal efficiency greater than 85% and as well as the conventional cleaning product. Only one product PC 200 had acceptable filming and streaking levels. However all three supplied products had better results than the conventional product.

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