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Trial Number 3

Trial Purpose:

To evaluate effective products on supplied white lithium grease using manual wiping.

Date Run:

12/22/2008

Experiment Procedure:

Ten products were selected from the previous two trials based on success on the supplied ink. All of the products were used at full strength at room temperature.
Peweighed steel coupons were coated with the supplied white lithium grease using a handheld swab. The contaminant was allowed to dry for at least a day and then were weighed a second time to determine the amount of grease applied.

Three coupons were placed into a Gardner Straight Line washability unit (designed for manual cleaning testing). The cleaning solutions were applied to the three coupons and allowed to sit for one minute. Simulated manual cleaning was run for 40 cycles or about one minute. Following cleaning, the coupons were dried 30 seconds using air blow off with dry compressed air at room temperature. Final weights were measured, and efficiencies were calculated for each coupon cleaned.

Trial Results:

Eight of the ten removed more than 80% of the grease after one minute of cleaning. Two products removed more than 90%. The table lists the initial weight of the oil, the final weight and the cleaning efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
Ink Zapper 0.1163 0.0410 64.75
  0.1363 0.0429 68.53
  0.2650 0.0354 86.64
Graffiti Remover SAC 0.1392 0.0253 81.82
  0.1320 0.0205 84.47
  0.1453 0.0203 86.03
Smart Solve 605 0.1491 0.0195 86.92
  0.1373 0.0169 87.69
  0.1360 0.0179 86.84
EP 921 0.0925 0.0311 66.38
  0.0997 0.0221 77.83
  0.1039 0.0281 72.95
Shopmaster RC 0.1177 0.0127 89.21
  0.0796 0.0113 85.80
  0.1288 0.0118 90.84
Solsafe 245 0.1090 0.0091 91.65
  0.1491 0.0059 96.04
  0.1539 0.0099 93.57
Soyester 0.1987 0.0287 85.56
  0.1757 0.0275 84.35
  0.1143 0.0296 74.10
Maix Solve 0.1074 0.0184 82.87
  0.1196 0.0119 90.05
  0.1785 0.0090 94.96
Green Force Ultra 0.2538 0.0101 96.02
  0.1589 0.0091 94.27
  0.1001 0.0073 92.71
Safety Strip HT 0.2440 0.0309 87.34
  0.1285 0.0169 86.85
  0.1074 0.0148 86.22

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The next step will be to pilot the top products on parts, either in the lab or on site to determine the best fit.

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