Trial #2
To evaluate two supplied cleaning products for removal of listed contaminants
One product was used directly from the bottle and the second was diluted to 5% using DI water in 600 ml beakers. Both solutions were evaluated at room temperature for five minutes of soaking. Three coupons per contaminant were cleaned and then rinsed for 30 seconds at room temperature. Coupons were dried for two hours at room temperature. Gravimetric analysis was performed to determine percent removal of the contaminants.
SUBSTRATE MATERIAL: Aluminum 202-2024 T-3, Brass, Stainless Steel 202-174-68-HR, Ceramic Coupons
CONTAMINANTS: The contaminants used are listed in Table 1.
Table 1. Contaminants
| Class
|
Name
|
CAS #
|
| OIL
|
Citgo NC 400
|
64741-89-5, 8052-42-4
|
| INK
|
Steel Blue
|
67-63-0, 108-88-3, 9004-70-0 , 109-60-4, 141-78-6, 64-17-5
|
| GREASE
|
KSL-111
|
64742-47-8, 8052-42-4
|
| LUB
|
Keystone423
|
64742-57-0, 64742-62-7
|
One product was used directly from the bottle and the second was diluted to 5% using DI water in 600 ml beakers.
Both solutions were evaluated at room temperature for five minutes of soaking. Three coupons per contaminant were cleaned and then rinsed for 30 seconds at room temperature. Coupons were dried for two hours at room temperature. Gravimetric analysis was performed to determine percent removal of the contaminants.
Table 3. Cleaning Effectiveness
| Product
|
| Drummand American Keynote
|
Drummand American Clout
|
| Cont/Sub
|
AL-LUB
|
CE-OIL
|
SS-INK
|
AL-GR
|
AL-GR
|
CE-OIL
|
BR-INK
|
SS-LUB
|
| Coupon 1
|
99.26
|
99.33
|
0.07
|
99.67
|
98.9
|
99.61
|
8.81
|
96.71
|
| Coupon 2
|
99.21
|
99.53
|
16.8
|
99.95
|
98.86
|
99.86
|
7.32
|
95.24
|
| Coupon 3
|
99.58
|
99.79
|
5.34
|
99.79
|
98.87
|
99.5
|
9.73
|
97.65
|
| Average
|
99.35
|
99.55
|
7.4
|
99.8
|
98.88
|
99.66
|
8.62
|
96.53
|
Both Keynote and Clout had excellent removal of the oil, lubricant and grease but had equal difficulty in cleaning the ink.
No relation