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Trial Number 2

Trial Purpose:

To evaluate supplied cleaning equipment for stainless steel polish as compared to conventional products

Date Run:

04/09/2015

Experiment Procedure:

Precleaned coupons were measured using a analytical balance and Spectro Guide Gloss-Color meter from BYK Gardner to
evaluate weights and L-values. Baseline color-gloss readings of the surface were taken in five locations on the coated wood coupons. Coupons were then contaminated with a grease mix from three lab staff members. Weights and L-Value readings were taken a second time. Cleaning products were then sprayed onto the surface, wiped off with a micro fiber cloth attached
to a Garnder Straight-line washability unit and cleaned for 5 cycles. Coupons were then dried with a single pass
using a fresh micro fiber cloth. Gloss readings were taken again in the same five locations. The difference in
weights gloss-color was then compared to determine effectiveness.

Cleaning data from the L-values can be calculated as percent detergency in the following equation:

% DET = L(cleaned) - L(soiled) X 100
L(unsoiled) - L(soiled)

ChemistriesEvaluated: Product 1; Comparative Stainless Steel Polish; Water;

Trial Results:

The Pledge product resulted in marginally better soil removal rate based on gravimetric results as compared to Endust, Behold and PLZ. With the variance in the soil removal rates, there was no significant difference in the four products evaluated. Results for gravimetric results are listed in the table.

Table of Soil Removal Rates      
Cleaner  Initial wt Final wt % Removed
Pledge Furniture      
  0.3005 0.094 68.72
  0.361 0.0921 74.49
  0.3422 0.0824 75.92
PLZ Furniture      
  0.4165 0.1591 61.8
  0.3866 0.1029 73.38
  0.23 0.1169 49.17
Endust      
  0.2696 0.0603 77.63
  0.367 0.1475 59.81
  0.4376 0.1353 69.08
Behold      
  0.5072 0.1552 69.4
  0.3327 0.151 54.61
  0.6145 0.1283 79.12
Cleaner Initial L Dirty L Final L % DET % AVG Std Dev
Pledge Furniture            
  59.6 36.18 50.9 62.85 71 18.97
  61.4 35.49 50.38 57.47    
  61.76 31.24 59.53 92.69    
PLZ Furniture            
  58.33 35.52 55.22 86.37 91.75 4.71
  61.55 32.68 59.74 93.73    
  63.29 34.25 61.88 95.14    
Endust            
  63.85 32.27 61.84 93.64 89.72 4.75
  65.73 32.76 60.6 84.44    
  61.7 33.85 59.22 91.1    
Behold            
  63.32 30.97 46.47 47.91 65.82 29.68
  65.21 36.77 50.84 49.47    
  55.82 31.02 55.84 100.08    

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

The PLZ product performed comparably with the three supplied products.

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