Six products from the previous trial were selected and used at full strength. The cleaning solutions were all heated to 130 F on a hot plate.
Eighteen preweighed alloy coupons were coated with the second 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.
Five of the six products removed over 95% of the lubricant. Three of these removed over 99%. 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
|
| Soy Gold 1100
|
1.4978
|
0.0286
|
98.09
|
|
|
1.5557
|
0.0541
|
96.52
|
|
|
1.5184
|
0.0291
|
98.08
|
| Solsafe 245
|
1.9557
|
0.0186
|
99.05
|
|
|
1.9062
|
0.0077
|
99.60
|
|
|
2.1998
|
0.0053
|
99.76
|
| Shopmaster RC
|
2.1195
|
0.0117
|
99.45
|
|
|
1.8953
|
0.0095
|
99.50
|
|
|
1.2542
|
0.0080
|
99.36
|
| DS 108
|
2.2218
|
0.0181
|
99.19
|
|
|
1.7480
|
0.0167
|
99.04
|
|
|
1.3172
|
0.0106
|
99.20
|
| D Greeze 500 LO
|
2.1602
|
0.1368
|
93.67
|
|
|
1.5610
|
0.0311
|
98.01
|
|
|
2.0320
|
0.0392
|
98.07
|
| SC Supersolve
|
1.8005
|
0.5534
|
69.26
|
|
|
2.2033
|
0.4855
|
77.96
|
|
|
1.8246
|
0.5985
|
67.20
|