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Trial Number 3

Trial Purpose:

To evaluate possible reformulation products for glass cleaning.

Date Run:

06/04/2010

Experiment Procedure:

The proposed formulation products were diluted using room temperature water to a concentration (96:1). A conventional product was used at full strength for glass cleaning. In addition, the supplied current formulation was used as a control to determine relative effectiveness of the proposed formulations.

Preweighed chrome, mirror and 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 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 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. Visual observations were made on the coupons for spotting and filming following the general guidelines set forth in the CSPA DCC 09A. Filming is best recognized as "haziness" or overall "milkiness", while streaking is best identified as dried droplets or "spotting", usually found strung together into thin white lines. Each coupon was evaluated separately for filming and streaking, (i.e., product residues without added soil), according to a scale of "1" to "7", where:

Filming Streaking
7 = high filming 7 = high streaking poor (performance)
1 = no visible filming 1 = no visible streaking (excellent performance)

Trial Results:

All four five of the formulations had higher soil removal efficiency than at the higher concentrations. The streaking and filming again showed no real difference from one formulation to the next. All of the reformulations removed more soil than the control formulation.

Cleaner Initial wt Final wt % Removed Streaking Filming Ave S Ave F
Nutrisol w/ Calsoft L40 Glass              
  0.0279 0.0004 98.57 1 1 1.3 1.3
  0.0250 0.0004 98.40 1 1    
  0.0217 0.0031 85.71 1 1    
Nutrisol w/ Calsoft L40 Chrome              
  0.0658 0.0020 96.96        
  0.0410 0.0023 94.39        
  0.0471 0.0063 86.62        
Nutrisol w/ Calsoft L40 Mirror              
  0.0596 0.0059 90.10 1 1    
  0.0475 0.0038 92.00 1 2    
  0.0281 0.0036 87.19 3 2    
Nutrisol w/ Calsoft AOS40 Glass              
  0.0512 0.0009 98.24 3 3 2.0 2.3
  0.0520 0.0059 88.65 1 2    
  0.0458 0.0052 88.65 2 1    
Nutrisol w/ Calsoft AOS40 Chrome              
  0.0497 0.0013 97.38        
  0.0249 0.0067 73.09        
  0.0274 0.0009 96.72        
Nutrisol w/ Calsoft AOS40 Mirror               
  0.0166 0.0011 93.37 1 3    
  0.0242 0.0006 97.52 2 3    
  0.0211 0.0020 90.52 3 2    
Nutrisol w/ Mirataine H2CA Glass              
  0.0211 0.0029 86.26 2 2 1.7 1.8
  0.0313 0.0054 82.75 1 1    
  0.0223 0.0013 94.17 1 1    
Nutrisol w/ Mirataine H2CA Chrome              
  0.0245 0.0032 86.94        
  0.0378 0.0017 95.50        
  0.0250 0.0009 96.40        
Nutrisol w/ Mirataine H2CA Mirror              
  0.0252 0.0026 89.68 2 1    
  0.0286 0.0057 80.07 2 3    
  0.0360 0.0011 96.94 2 3    
Nutrisol w/ SugaFax D10 Glass              
  0.0165 0.0010 93.94 1 1 1.3 1.3
  0.0276 0.0014 94.93 1 2    
  0.0171 0.0012 92.98 1 1    
Nutrisol w/ SugaFax D10 Chrome              
  0.0398 0.0058 85.43        
  0.0239 0.0017 92.89        
  0.0472 0.0009 98.09        
Nutrisol w/ SugaFax D10 Mirror              
  0.0167 0.0020 88.02 2 1    
  0.0315 0.0012 96.19 2 1    
  0.0280 0.0028 90.00 1 2    
Green Bridge Control 3-1 96-1 Glass              
  0.0178 0.0016 91.01 2 1 2.2 1.3
  0.0252 0.0005 98.02 2 1    
  0.0312 0.0024 92.31 1 1    
Green Bridge Control 3-1 96-1 Chrome              
  0.0228 0.0014 93.86        
  0.0294 0.0007 97.62        
  0.0298 0.0065 78.19        
Green Bridge Control 3-1 96-1 Mirror              
  0.0276 0.0133 51.81 3 1    
  0.0210 0.0051 75.71 3 2    
  0.0258 0.0012 95.35 2 2    
Nutrisol w/ SugaNate 160 Glass              
  0.0542 0.0001 99.82 2 1 1.5 2.0
  0.0444 -0.0012 102.70 1 1    
  0.0512 0.0004 99.22 1 1    
Nutrisol w/ SugaNate 160 Chrome              
  0.0669 0.0009 98.65 2 1    
  0.0476 0.0081 82.98 2 3    
  0.0534 0.0019 96.44 1 4    
Nutrisol w/ SugaNate 160 Mirror              
  0.0559 0.0046 91.77 2 3    
  0.1079 0.0097 91.01 1 3    
  0.0845 0.0174 79.41 2 3    

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The lower dilution for the glass cleaners resulted in improved soil removal with all products removing over 85% of the glass soap scum.

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