Trial Purpose:
To evaluate top products on second supplied ink using manual wiping.
Date Run:
03/27/2008Experiment 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 handheld 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 was successful in removing the orange ink from the aluminum coupons using manual cleaning. It was noted that 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.
