The top six products based on past testing results were again diluted to 5% using DI water in 400 ml beakers. All six products were heated to 130 F on a hot plate. Peweighed aluminum coupons were coated with the Hagsterfer's Crystal Brite EDM oil using a handheld swab. The contaminant was allowed to dry for about 10 minutes. Once dry, the coupons were weighed a second time to determine the amount of oil applied.
Three coupons were immersed into each solution and cleaned for 5 minutes using stir-bar agitation. Rinsing was performed for 15 seconds using tap water heated to 120 F and followed by 30 seconds of air blow off with dry compressed air at room temperature. Final weights were recorded, and efficiencies were calculated for each coupon cleaned.
All six products were effective at removing the EDM oil from the aluminum coupons within 5 minutes of immersion cleaning. Five of the six removed over 99% of the EDM fluid. The sixth removed over 97%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
| Cleaner
|
Initial wt
|
Final wt
|
% Removed
|
| Green Soak
|
0.1438
|
-0.0032
|
102.23
|
|
|
0.1488
|
-0.0015
|
101.01
|
|
|
0.1299
|
-0.0017
|
101.31
|
| Shopmaster LpH
|
0.1456
|
-0.0002
|
100.14
|
|
|
0.1616
|
-0.0001
|
100.06
|
|
|
0.1559
|
0.0004
|
99.74
|
| FPC 100
|
0.1695
|
0.0003
|
99.82
|
|
|
0.1720
|
0.0002
|
99.88
|
|
|
0.1808
|
0.0001
|
99.94
|
| SC Aircraft & Metal Cleaner
|
0.1720
|
0.0062
|
96.40
|
|
|
0.1774
|
-0.0009
|
100.51
|
|
|
0.1890
|
-0.0002
|
100.11
|
| Amberclean L12
|
0.1733
|
0.0000
|
100.00
|
|
|
0.1606
|
0.0017
|
98.94
|
|
|
0.1917
|
0.0003
|
99.84
|
| Ozzy Juice SW-3
|
0.1952
|
0.0042
|
97.85
|
|
|
0.1989
|
0.0048
|
97.59
|
|
|
0.1579
|
0.0043
|
97.28
|