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Trial Number 2

Trial Purpose:

To evaluate top products on second supplied ink using manual wiping.

Date Run:

03/27/2008

Experiment Procedure:

The twelve successful products from the previous trial were used at full strength and room temperature.
Twenty-four preweighed coupons were coated with the supplied Markal Valve Action Paint Marker (orange ink). Once dry, a second weight was recorded to determine the amount of ink added to the coupon.
In contrast to the previous trial, two coupons were used per cleaning alternative. A hand held swab was immersed into the cleaning product and then manual wiped across the coupon for up to one minute. Following the cleaning, the coupons was wiped dry for 5 seconds. Observations were made, final coupon weights recorded and the average efficiencies were calculated.

Trial Results:

All but one product were successful in removing the orange ink from the aluminum coupons using manual cleaning. It was noted that the some of soy based products needed a second wiping to remove the excess cleaning product left behind. The successful products all required less than one minute to remove the ink. The table below lists the amount of ink applied, the amount remaining, the efficiency and the time needed to clean the ink.

Cleaner Initial wt Final wt % Removed Time Required (sec)
Soy Clear 1500 0.0084 0.0014 83.33 15
  0.0128 0.0030 76.56  
Ink Zapper 0.0153 0.0022 85.62 35
  0.0125 0.0034 72.80  
Methyl Ester 1618 0.0191 0.0026 86.39 20
  0.0108 0.0017 84.26  
Citrus Soy Solvent Cleaner & Degreaser 0.0094 0.0022 76.60 17-18
  0.0145 0.0040 72.41  
Graffiti Remover SAC 0.0197 0.0019 90.36 10
  0.0143 0.0016 88.81  
Soy Strong 0.0109 0.0015 86.24 <10
  0.0123 0.0026 78.86  
BioRenewables Industrial Degreaser 0.0094 0.0012 87.23 7-8
  0.0113 0.0017 84.96  
EP 921 0.0099 0.0007 92.93 8-9
  0.0116 0.0010 91.38  
Inproclean 4000 T 0.0169 0.0165 2.37 >60
  0.0125 0.0168 -34.40  
BG Solv 717 Ink & Graffiti Cleaner 0.0118 0.0006 94.92 6
  0.0091 0.0007 92.31  
Graffiti remover 0.0073 0.0010 86.30 9
  0.0152 0.0008 94.74  
Smart Solve 605 0.0197 0.0008 95.94 9
  0.0180 0.0013 92.78  

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 successful products will be used on the next supplied ink following the same procedure. Two of the products from Spartan were determined to be the same (or very similar) products. Only one of the two will be kept in the study.

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