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Trial Number 0

Trial Purpose:

To evaluate the supplied products for VCT and Painted VCT floor tile surface cleaning effectiveness.

Date Run:


Experiment Procedure:

First, a total set of 18 coupon tiles were obtained, 3 coupons each for the two substrates used times the three supplied cleaners. The initial weights of the coupons were acquired in order to use it as a baseline. The coupons were then soiled using 0.5g of  DCC-17 soil. DCC-17 soil consists of: 33% vegetable shortening, 33% lard, 33% vegetable oil, and 1% carbon lampblack. The soiled coupons were then allowed to sit overnight for 24 hours in order for the soil to age. The next day, the dry dirty weight was then recorded for each coupon. The specified cleaners were used to test their cleaning effectiveness on the VCT and the Painted VCT floor tile coupons. The manner in which they were cleaned was as follows. 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 1 spray of cleaning solutions.  Each coupon was sprayed 2 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 to assist in drying.  Final weights were recorded and efficiencies were calculated and recorded.

Trial Results:

The results from the testing are reported in the table below:

Cleaner Initial wt Final wt % Removed % Removal
Laurinex RTU        
VCT 0.3171 0.0251 92.08  
  0.4581 0.0810 82.32  
  0.3856 0.1152 70.12 81.51
Purple Tiger RTU        
VCT 0.4154 0.0851 79.51  
  0.4508 0.0983 78.19  
  0.4058 0.0904 77.72 78.48
7th Generation All Purpose RTU
VCT 0.4658 0.1519 67.39  
  0.4713 0.1398 70.34  
  0.4587 0.1531 66.62 68.12
Laurinex RTU        
Painted VCT 0.4067 0.0813 80.01  
  0.5093 0.1361 73.28  
  0.3973 0.1205 69.67 74.32
Purple Tiger RTU        
Painted VCT 0.3288 0.0894 72.81  
  0.4045 0.1072 73.5  
  0.5236 0.1572 69.98 72.10
7th Generation All Purpose RTU
Painted VCT 0.4360 0.1110 74.54  
  0.5066 0.1346 73.43  
  0.4071 0.1527 62.49 70.15

Success Rating:

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


The best cleaner found during our testing was determined to be the Laurinex product at an overall cleaning average of 77.92% followed by the Purple Tiger with an overall cleaning efficiency of 75.29%. It was found that the worst performing cleaner was the 7th Generation All Purpose product with an overall cleaning average of 69.14%.

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