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Trial Number 1

Client Number 79

Project Number 4

Trial Purpose:

To evaluate successful cleaners at higher concentrations

Date Run:

10/08/2002

Experiment Procedure:

Four products from the previous trial were diluted to 10% using DI water in 600 ml beakers. Each solution was heated to 130 F on a hot plate, followed by a 5 minute degassing in a Crest 40 kHz ultrasonic tank. Twelve preweighed coupons were coated with Fuchs Lubricants Co Renodraw 12 using a hand held swab. A glass rod was then used to ensure a thin, evenly distributed layer of lubricant, more closely matching actual operating conditions. Coupons were then reweighed using a Denver Instruments A250 Balance. Three coupons were cleaned for 8 seconds in a cleaning solution, followed by an 8 second ultrasonic tap water bath rinse. Coupons were dried using air blow off at room temperature for 10 seconds. Once coupons were dry, final weights were measured and efficiencies were calculated.

Trial Results:

Three of the four products removed over 89% of the lubricant from the coupons within 8 seconds.  The table below lists the amount of contaminant applied to the coupon, how much was not removed and the efficiency for each coupon cleaned.

Table 1. Contaminant Removal

Cleaner Initial wt Final wt % Removed
EXP 1400 0.0406 0.0008 98.03
  0.0863 0.0036 95.83
  0.0696 0.0103 85.20
Surface Cleanse 0.1161 0.0043 96.30
  0.0790 0.0034 95.70
  0.0764 0.0012 98.43
Inproclean 3800 0.0678 0.0009 98.67
  0.0666 0.0033 95.05
  0.0667 0.0176 73.61
Beyond 2005 0.0423 0.0185 56.26
  0.0311 0.0101 67.52
  0.1148 0.0455 60.37
E3HB 0.1477 0.1117 24.37
  0.0421 0.0127 69.83
  0.0501 0.0348 30.54

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The three successful products will be tested again at a higher concentration.

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