Three products from the previous trial were retested at 10% dilutions. In addition, six non-aqueous products were selected from the lab's on-line database, www.cleanersolutions.org based on client supplied information and past product performance. One product was diluted to with DI water to 10% in 600 ml beakers. The other five products were used at full strength. The cleaning solutions were all heated to 130 F on a hot plate.
Twenty-seven preweighed alloy coupons were coated with the first supplied lubricant and weighed a second time to determine the amount of contaminant added to each coupon. Three coupons were immersed into each solution and cleaned for 5 minutes using stir-bar agitation. Coupons were rinsed in room temperature tap water for 15 seconds and air dried using compressed dry air for 30 seconds. A final weight was recorded, and efficiencies were calculated for each coupon cleaned.
All five products used at full strength removed over 75% of the lubricant. Three of these removed over 93% and one of these (Solsafe 245) removed over 97%. The three products from the previous trial did not improve with an increase in concentration from 5 to 10%. 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
|
| Micro 90
|
1.1948
|
0.6216
|
47.97
|
|
|
1.1926
|
0.7440
|
37.62
|
|
|
1.1380
|
0.6954
|
38.89
|
| Ionox HC 2
|
1.2543
|
0.8456
|
32.58
|
|
|
1.0725
|
0.7665
|
28.53
|
|
|
1.5243
|
0.5292
|
65.28
|
| Aquavantage 1400
|
1.0483
|
0.6334
|
39.58
|
|
|
1.2284
|
0.7234
|
41.11
|
|
|
1.0922
|
1.0026
|
8.20
|
| SC Supersolve
|
1.8746
|
1.1165
|
40.44
|
|
|
1.5725
|
0.9734
|
38.10
|
|
|
1.6190
|
1.0192
|
37.05
|
| Soy Gold 1100
|
0.9363
|
0.1518
|
83.79
|
|
|
1.2886
|
0.1782
|
86.17
|
|
|
1.3318
|
0.2678
|
79.89
|
| Solsafe 245
|
1.2694
|
0.0235
|
98.15
|
|
|
1.6363
|
0.0286
|
98.25
|
|
|
1.5927
|
0.0427
|
97.32
|
| Shopmaster RC
|
1.5022
|
0.0866
|
94.24
|
|
|
1.9648
|
0.1115
|
94.33
|
|
|
1.6057
|
0.1166
|
92.74
|
| DS 108
|
1.4618
|
0.4115
|
71.85
|
|
|
1.1213
|
0.1799
|
83.96
|
|
|
1.2780
|
0.3799
|
70.27
|
| D Greeze 500 LO
|
1.3857
|
0.0932
|
93.27
|
|
|
1.2617
|
0.0827
|
93.45
|
|
|
1.2530
|
0.0673
|
94.63
|