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Trial Number 3

Trial Purpose:

To compare water with other aqueous products in the removal of the new oil.

Date Run:


Experiment Procedure:

Six different chemistries were selected from the laboratories databases based on previous uses and vendor information. One cleaner was made into a 10% solution and the others into 5% solutions using DI water in a 400 mL beaker. In addition to the aqueous cleaners selected, DI water was used as the seventh cleaner. A rust inhibitor was added to the water. All 7 cleaners were heated to 140 F on a hot plate. Twenty-one preweighed coupons were contaminated with the new oil and a second weighing was performed. Three coupons were placed in each cleaner for 5 minutes with stir-bar agitation. Coupons were rinsed in tap water at 120 F for 30 seconds and allowed to air dry for 1 hour. Final, clean weights were recorded.

CONTAMINANTS: Oil-Second oil supplied by client
CONTAMINATING PROCESS USED: Oil was applied to coupons using a hand-held swab.

Trial Results:

All of the selected cleaners showed excellent removal of the oil. It was observed that the cleaning time could be lowered from 5 minutes to under 3 minutes. The water was just as effective as the aqueous cleaners. Table 1 list the cleaning efficiencies.

Table 1. Cleaning Efficiency

  MC 580 Natural Blue SWR One 2000 XS Sea Wash Super Neutral Water
Coupon 1 99.49 100.3 99.99 99.19 100 99.92 99.47
Coupon 2 99.98 100.1 99.98 99.83 99.93 99.95 99.85
Coupon 3 99.71 98.82 99.8 100.3 99.98 99.81 99.94
Ave 99.73 99.74 99.92 99.77 99.97 99.89 99.75
Std Dev 0.25 0.80 0.11 0.56 0.04 0.07 0.25

Success Rating:

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


The new oil was easily removed from the aluminum substrate within 3 minutes of minimal agitation.  The three coupons cleaned in the water solution have been sent to be analyzed by the client.

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