Trial #2
To evaluate successful products on the third supplied buffing compound using immersion cleaning.
Six products from the previous trial were selected based on performance. Each product was used at full strength at room temperature. A 250 ml beaker was filled with each product and placed on a stir plate.
Eighteen preweighed 260 Brass coupons were coated with the ETA Brown buffing compound. The compound was applied by heating the coupons and the buffing compound with a Master Appliance Heat Gun. The hot buffing compound was rubbed across the surface. Coupons were allowed to cool to room temperature and weighed a second time to determine the amount of contaminant applied. Three coupons were cleaned in each product for 5 minutes using stir-bar agitation. After cleaning, the parts were allowed to air dry for 10 minutes at room temperature. Once dry, final weights were recorded and efficiencies were calculated for each product.
Three products removed over 90% of the buffing compound. The other three removed around 80% of the buffing compound. 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
|
| Ensolv
|
0.0097
|
0.0001
|
98.97
|
|
|
0.0020
|
0.0001
|
95.00
|
|
|
0.0020
|
0.0002
|
90.00
|
| CCA
|
0.0046
|
0.0006
|
86.96
|
|
|
0.0077
|
0.0007
|
90.91
|
|
|
0.0038
|
0.0001
|
97.37
|
| MCA
|
0.0203
|
0.0035
|
82.76
|
|
|
0.0173
|
0.0002
|
98.84
|
|
|
0.0307
|
0.0113
|
63.19
|
| Lenium ES
|
0.0126
|
-0.0001
|
100.79
|
|
|
0.0069
|
0.0004
|
94.20
|
|
|
0.0043
|
0.0000
|
100.00
|
| Solvon IP
|
0.0112
|
0.0048
|
57.14
|
|
|
0.0999
|
0.0058
|
94.19
|
|
|
0.0271
|
0.0035
|
87.08
|
| Solvon PB
|
0.0070
|
0.0009
|
87.14
|
|
|
0.0110
|
0.0043
|
60.91
|
|
|
0.0142
|
0.0049
|
65.49
|
The six products tested will be used to clean supplied parts in a heated vapor degreasing system.
No relation