To evaluate TCE drop-in replacements for vapor degreasing operation.
Date Run:
05/05/2004
Experiment Procedure:
Twelve cleaners were selected based on client request for vapor degreasing solvents. All twelve products were used heated to 96 F on a hot plate in 250 ml beakers. The process utilized no water rinse and only used ambient air to dry the parts. Thirty-six preweighed steel coupons were coated with Castrol Quench G oil (64742-55-8, 64742-65-0, 8052-42-4) using a hand held swab. The quench oil was then heated with a Master Appliance Heat gun at 300 F for 10 minutes. After cooling to room temperature, a second weighing was performed to determine the amount of soil that was added. Three coupons were cleaned in each solution for 5 minutes with minimal stir-bar agitation. After drying, coupons were weighed a final time to determine the cleaning efficiency of each product.
Trial Results:
All twelve products removed over 90% of the quench oil within five minutes of cleaning. Nine products removed over 95% and five removed over 98%. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
Cleaner
Initial wt
Final wt
% Removed
Ak 225
0.0682
0.0021
96.92
0.1237
0.0027
97.82
0.0615
0.0017
97.24
Vertrel CCA
0.0915
0.0040
95.63
0.0590
0.0039
93.39
0.1875
0.0035
98.13
Vertrel MCA
0.1605
0.0061
96.20
0.1049
0.0096
90.85
0.0859
0.0077
91.04
Flux Remover C
0.1122
0.0033
97.06
0.1626
0.0078
95.20
0.1661
0.0030
98.19
Heavy DutyDegreaser C
0.1516
0.0066
95.65
0.1941
0.0233
88.00
0.1179
0.0116
90.16
HFE 7100
0.1791
0.0101
94.36
0.0567
0.0087
84.66
0.1640
0.0122
92.56
HFE 7200
0.2124
0.0026
98.78
0.1330
0.0032
97.59
0.2182
0.0011
99.50
Ensolv
0.1025
0.0028
97.27
0.1352
0.0025
98.15
0.1295
0.0024
98.15
Ensolv A
0.1230
0.0020
98.37
0.2217
0.0020
99.10
0.1034
0.0022
97.87
Metalnox M6960
0.1632
0.0012
99.26
0.1043
0.0025
97.60
0.1769
0.0033
98.13
Solvon PB
0.1397
0.0005
99.64
0.1963
0.0009
99.54
0.1190
0.0010
99.16
Solvon IP
0.2184
0.0019
99.13
0.1136
0.0034
97.01
0.1758
0.0017
99.03
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
The nine products that removed over 95% of the soil will be tested on Rochester Midland RI 780 rust preventative under the same conditions.
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