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Trial Number 6

Trial Purpose:

To evaluate the efficiency that various cleaning methods can remove Momentive Grease from Brass coupons\substrate.

Date Run:

03/20/2016

Experiment Procedure:

Brass coupons were selected and arranged into rows of 3 coupons, a row per cleaner. Initial weights were taken, and coupons were soiled and reweighed. The lower third of the coupons were soiled.  Beakers with drop in solvent replacement solutions were set up on stirring plates equipped with a stir bar. The coupons were immersed for 5 minutes. Observations were taken during the cleaning process. The coupons were dried on a rack for 15 minutes.  Final weights were recorded.

Trial Results:

Cleaner Initial wt of cont. Final wt of cont. %Cont Removed
FluoSolv CX 0.2139 0.0052 97.57
  0.0814 0.0004 99.51
  0.1651 0.0163 90.13
FluoSolv NC 0.1846 0.0027 98.54
  0.1267 0.0055 95.66
  0.1342 0.0054 95.98
Honeywell PF 0.1894 0.0004 99.79
  0.1947 0.0008 99.59
  0.1950 0.0025 98.72
Honeywell PF 2A 0.1246 0.0019 98.48
  0.1420 0.0002 99.86
  0.1483 0.0009 99.39
Vertrel Sion 0.1245 0.0193 84.5
  0.1907 0.0668 64.97
  0.1074 0.0187 82.59
Fluosolv CX-500 0.1956 0.1840 5.93
  0.1601 0.1502 6.18
  0.1509 0.1407 6.76
Fluosolv FR-110 0.1616 0.1554 3.84
  0.2280 0.2184 4.21
  0.1711 0.1631 4.68

Success Rating:

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

Conclusion:

Based on the lab results, Fluosolv CX, Fluosolv NC, Solstice PF, and Solstice PF-2A were effective in removing the Momentive grease.

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