Three cleaners were requested from the client. Six aqueous based cleaners were diluted to 5% using DI water in 600 ml beakers. All three products were heated to 120 F on a hot plate.
Nine preweighed titanium coupons were coated with client supplied tapping fluid, Castrol Industries Moly Dee Tapping fluid (63449-39-8, 64741-96-4), using a hand held swab and then weighed a second time to determine the amount of soil added. Three coupons were cleaned in each solution for 5 minutes using stir-bar agitation. Coupons were rinsed in tap water for 15 seconds at 120 F, followed by air blow off at room temperature. Once dry, coupons were weighed a final time and efficiencies for each cleaner were calculated.
Two of the three products removed over 85%. The third product removed just under the 85%. The table below lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| M Aero
|
0.2398
|
0.0276
|
88.49
|
|
|
0.2288
|
0.0381
|
83.35
|
|
|
0.3865
|
0.0562
|
85.46
|
| M Aero NS
|
0.2533
|
0.0440
|
82.63
|
|
|
0.2507
|
0.0011
|
99.56
|
|
|
0.4063
|
0.0015
|
99.63
|
| M 400
|
0.2437
|
0.0316
|
87.03
|
|
|
0.2773
|
0.0456
|
83.56
|
|
|
0.2295
|
0.0376
|
83.62
|