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Trial Number 2

Trial Purpose:

To evaluate successful cleaners on second supplied contaminant

Date Run:


Experiment Procedure:

Five cleaners were selected from previous trial. Four aqueous based cleaners were diluted to 10% using DI water in 600 ml beakers. One semi-aqueous product was used at 50% diluted with DI water. All of the products were heated to 120 F on a hot plate.
Fifteen preweighed aluminum coupons were coated with the second client supplied oil, Castrol Moly Dee Tapping Fluid. The oil was applied to coupons using a swab and then heated for 10 minutes using a Master Appliance heat gun. The coupons were allowed to cool to room temperature before weighing a second time.
Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. Coupons were rinsed in tap water at 120 F for 15 seconds and then were dried using air blow off at room temperature. Once dry, coupons were weighed a final time and efficiencies for each cleaner were calculated.

Trial Results:

Three of the five products removed over 80% of the tapping fluid within five minutes. The Bio T 300 B removed nearly 100% of the soil. The current cleaner removed 76%. The table lists the amount of soil added, the amount remaining after cleaning and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
815 GD 0.5010 0.1742 65.23
  0.3405 0.1057 68.96
  0.5977 0.0366 93.88
SC Aircraft & Metal Cleaner 0.4451 0.2141 51.90
  0.4596 0.2159 53.02
  0.4988 0.1558 68.77
Metalnox M6314 0.6176 0.1369 77.83
  0.7053 0.0609 91.37
  0.6044 0.1048 82.66
Hurrisafe 9450 0.6122 0.0574 90.62
  0.7026 0.0490 93.03
  0.5148 0.0972 81.12
Bio T 300 B 0.9124 0.0010 99.89
  0.7337 0.0023 99.69
  0.6849 0.0009 99.87

Success Rating:

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


Increasing the cleaning time should improve the effectiveness of the products. A follow up trial will be conducted at a longer time but will not use a rinse.

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