Trial Purpose:
To evaluate successful cleaners on second supplied contaminant
Date Run:
02/23/2004Experiment 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.Conclusion:
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.
