Trial #2
To evaluate successful cleaners on second supplied contaminant
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.
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
|
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.
No relation