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Trial Number 10

Trial Purpose:

To evaluate successful cleaners on second oil/abrasive mix.

Date Run:

02/06/2003

Experiment Procedure:

Six products were selected from the lab's database based on previous tests results. The semi aqueous terpenes were used at full strength in a 600 ml beaker. The other four products were diluted to 5% using DI water in 600 ml beakers. All six products were heated to 120 F on a hot plate.
Eighteen preweighed coupons were coated with Speed Fam Industrial Applications Vehicle 210 with Aluminum Oxide abrasive using a hand held swab. The oil/abrasive mix was forced dry using a Master Appliance Heat Gun at 500 F for 3 minutes. Coupons were allowed to cool to room temperature and weighed a second time. Three coupons were immersed in each solution and cleaned for 5 minutes using stir-bar agitation, rinsed in tap water for 15 seconds at 120 F and dried with the heat gun for 30 seconds at 500 F. Once coupons were cooled to room temperature, final weights were recorded and cleaning efficiencies were calculated.

Trial Results:

All six products removed over 95% of the oil/abrasive mix.  Three cleaners, Safety First, LPS Precision Clean & US Polychemical removed over 99% leaving the coupons with no visible trace of the oil/abrasive mix.  The table below lists the amount of oil/abrasive applied and removed.

Cleaner Initial wt Final wt % Removed
Safety First 0.2234 0.0008 99.64
  0.1391 0.003 97.84
  0.1617 1E-04 99.94
Formula 815 GD 0.1555 0.0085 94.53
  0.1373 0.0036 97.38
  0.1643 0.0012 99.27
Amberclean L12 0.1334 0.0067 94.98
  0.1644 0.0052 96.84
  0.1322 0.0048 96.37
LPS Precision Clean 0.1233 0.0003 99.76
  0.1211 0.0004 99.67
  0.1107 0.0006 99.46
Polyspray Jet 79 XS 0.1759 0.0002 99.89
  0.0929 0.0013 98.60
  0.1141 0.0011 99.04
Opt Clear 0.1317 0.0036 97.27
  0.1144 0.008 93.01
  0.152 0.0072 95.26

Success Rating:

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

Conclusion:

All six products were successful in removing the oil/abrasive mix within 5 minutes using immersion cleaning.

The next trial will be to remove mounted parts from the metal plates and remove the wax using immersion cleaning with manual wiping (if necessary).

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