Trial #10
To evaluate client supplied cleaning product on all four soils comparing to other alternatives previously evaluated.
The supplied products were diluted to the 3% concentration being used by the client. Dilution was done using DI water in 600 ml glass beakers. The solution was heated to 130 F immersed in a heat bath in a Branson 40 kHz ultrasonic tank. The product was degassed for five minutes.
Twelve preweighed steel coupons were coated with the four supplied contaminants: Castrol Industrial Inc Safety Draw 722X (61788-76-9, 64742-54-7), Tru-Edge Cutting Fluid, ChemSearch Aerolex Plus moly dry film lubricant, and Dow Corning G-n metal assembly spray lubricant. Soils were applied using a swab or sprayed directly onto the coupons. Coupons were weighed a second time to determine the amount of soil added. Three coupons were immersed into each product and cleaned for 5 minutes using ultrasonic agitation. Following cleaning, coupons were rinsed for 15 seconds in tap water at 120 F and dried using air blow off for 30 seconds at room temperature. Final weights were recorded and efficiencies were calculated.
The supplied cleaning product was effective on two of the four products, removing 87% of the safety draw 722 x and 94% of the cutting fluid. It was partially successful on the Moly Dry film lubricant and the G-N metal assembly spray, removing 63% and 75%. The table lists the amount of contaminant added, the amount remaining after cleaning and the efficiency of each coupon cleaned.
| Contaminant
|
Initial wt
|
Final wt
|
% Removed
|
| Safety draw 722X
|
0.7287
|
0.1328
|
81.78
|
|
|
0.7399
|
0.0340
|
95.4
|
|
|
0.6615
|
0.0981
|
85.17
|
| Cutting fluid
|
0.2276
|
0.0122
|
94.64
|
|
|
0.4488
|
0.0262
|
94.16
|
|
|
0.5113
|
0.0303
|
94.07
|
| Moly Dry Film Lube
|
0.0114
|
0.0071
|
37.72
|
|
|
0.0240
|
0.0054
|
77.50
|
|
|
0.0238
|
0.0058
|
75.63
|
| Gn Metal Assembly Spray
|
0.2079
|
0.0928
|
55.36
|
|
|
0.1609
|
0.0424
|
73.65
|
|
|
0.1373
|
0.0049
|
96.43
|
The supplied product was comparable to other selected cleaners, removing slightly less on average for the safety draw and cutting fluids. However, it was better than the other aqueous products on removing the Moldy dry film lubricant. The product was consistent with the other products for the G-N assembly spray. The supplied product will be evaluated on the two types of supplied parts.
No relation