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Trial Number 1

Trial Purpose:

To identify additional alternatives for ink removal using manual wiping

Date Run:

12/15/2008

Experiment Procedure:

An additional eleven product were selected from the lab's on-line database, www.cleanersolutions.org, based on first trial results. All eleven of the products were used at full strength as recommended by the vendor and at room temperature.

Peweighed steel coupons were coated with the Dykem Black Staining Color ink (123-86-4, 64-17-5, 71-36-3, 9004-70-0, 141-78-6, 109-60-4, 67-63-0, 1333-86-4) contaminant using a hand held swab. The contaminant was allowed to dry for about an hour. Once dry, the coupons were weighed a second time to determine the amount of ink applied.

One coupon was manually cleaned using a soaked Kimberly Clark Wypall X60 reinforced paper towel. Cleaning lasted for one minute. Coupons were briefly wiped dry with a fresh towel. The final coupon weights were recorded and preliminary efficiencies were calculated for each coupon cleaned.

Trial Results:

The quick screening of the additional eleven products resulted in six potential alternatives, two of which were found to remove over 90% of the ink in the modified wiping process. The more effective products needed less then the full minute of cleaning time to achieve their results. The table lists the initial weight of the ink, the final weight and the cleaning efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Canola Gold CE 110 0.0246 0.0189 23.17
Soygold 1000 0.0280 0.0234 16.43
Shopmaster RC 0.0183 0.0014 92.35
Bean-e-doo 0.0365 0.0275 24.66
Solsafe 245 0.0415 0.0129 68.92
Harvest Gold 2001 0.0105 0.0095 9.52
SC SoyEster 0.0448 0.0126 71.87
Maxisolv 0.0542 0.0076 85.98
Green Works Glass Cleaner 0.0213 0.0139 34.74
Green Force Ultra 0.0467 0.0173 62.96
Safety Prep HT 0.0520 0.0023 95.58

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 six successful products from this trial and the four from the previous trial will be evaluated next on the supplied grease.

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