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Trial Number 4

Trial Purpose:

To evaluate successful products under conditions closely matching current practice at client facility.

Date Run:

05/06/2005

Experiment Procedure:

Four products selected from previous testing. The products were used at full strength. Products were used at room temperature. Twelve preweighed coupons were first coated with Valspar MR 225 mold release (100-41-4, 1330-20-7, 8052-41-3, 67-63-0, 108-88-3, 110-82-7, 64742-89-8), followed by a second coating with Valspar MR 225 Aerosol (75-28-5, 74-98-6, 100-41-4, 75-09-2). The coupons were placed into a convection oven at 150 F and allowed to cure overnight. After the coupons were cooled to room temperature, a thin strip of Chockfast Orange Resin was applied and allowed to dry. A second set of weights were recorded to determine the amount of contaminant that was added.
Three coupons were cleaned in each product for five minutes using stir-bar agitation. After cleaning the coupons were removed and dried using compressed air at room temperature. Final weights were to be recorded after coupons were dry. Observations were made and recorded.

Trial Results:

No products were effective. The products may have removed some mold release but no resin which was really the issue.

Cleaner Initial wt Final wt % Removed
Bio T Max 0.0766 0.0415 45.82
  0.0794 0.0381 52.02
  0.0672 0.0440 34.52
DS 104 0.0965 0.0596 38.24
  0.0633 0.0365 42.34
  0.0788 0.0470 40.36
MaxiSolv 0.0671 0.0634 5.51
  0.0694 0.0658 5.19
  0.0907 0.0859 5.29
DBE 5 0.0647 0.0624 3.55
  0.0637 0.0608 4.55
  0.0861 0.0830 3.60

Success Rating:

Test incomplete or inconclusive.

Conclusion:

All products will be tried in heated immersion cleaning.

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