Two products were diluted to five percent using DI water in 600 ml beakers. The solutions were heated to 130 F on a hot plate. Preweighed coupons were contaminated with the various contaminants and weighed again. Next, three coupons with the same contaminant were immersed into a beaker agitated with a magnetic stir bar. Cleaning lasted for five minutes. The coupons were rinsed using tap water at 120 F for 30 seconds and dried for 2 hours at room temperature. Once the coupons were dry, final clean weights were recorded and the efficiency of the cleaning products were determined.
SUBSTRATE MATERIAL:
Table 1. Substrates Cleaned
Substrate Code ID#
Aluminum AL1 5086 H-32
AL2 1100 H-14
Table 2. Contaminants Removed
Contaminant CAS#
Flux FX, Kester 1544 Rosin 64-17-5, 78-92-2, 8050-09-7
Grease GR, KSL-111 64742-57-0, 64742-62-7, 8052-42-4
Lubricant LU, 423 64742-47-8
Oil OI, Hydrolic, East Falls Co. 64742-65-0
Both cleaners had difficulty in removing the lubricant from the aluminum coupons with Emkay removing just over 60% of the lubricant and Magnum only removing just under 50%. Magnum was more successful in cleaning the other three contaminants as shown in the side by side comparison in Table 4.
Table 4. Direct Comparison
| Contaminant
|
Emkay
|
Magnum
|
| flux
|
58.33
|
99.55
|
| grease
|
78.7
|
97.19
|
| lubricant
|
60.43
|
49.82
|
| oil
|
87.77
|
94.13
|
The results for each cleaner are listed in Table 5.
Table 5. Product Efficiencies
| RAW DATA
|
| Company
|
Emkay
|
Company
|
Magnum Research
|
| Product
|
Safety Wash Clear
|
Product
|
Aluminum Aerowash
|
| Classif.
|
Alk-aq
|
Classif.
|
Alk-aq
|
| Subst/Cont
|
AL1-FX
|
AL1-GR
|
AL2-LU
|
AL2-OI
|
Subst/Con
|
AL1-FX
|
AL1-GR
|
AL2-LU
|
AL2-OI
|
| Coupon 1
|
78.13
|
52.27
|
56.28
|
97.40
|
Coupon 1
|
99.14
|
97.98
|
42.75
|
98.39
|
| Coupon 2
|
51.21
|
91.17
|
62.63
|
78.15
|
Coupon 2
|
99.10
|
96.91
|
51.76
|
97.51
|
| Coupon 3
|
45.65
|
92.64
|
62.35
|
87.76
|
Coupon 3
|
100.4
|
96.66
|
54.96
|
86.46
|
| Average
|
58.33
|
78.69
|
60.42
|
87.77
|
Average
|
99.55
|
97.19
|
49.82
|
94.12
|