To evaluate successful products on third supplied soil
Date Run:
05/07/2004
Experiment Procedure:
Nine cleaners were selected based on client request for vapor degreasing solvents. All 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. Twenty-seven preweighed steel coupons were coated with a varnish mix containing Cooper's Creek Chemicals, Cooper Black Tank Paint No 739 (64742-89-8, 8052-42-4, 108-88-3); Sherwin Williams Company, V74B2 Black Asphaltum coating (64742-89-8, 64742-88-7, 8052-42-4) using a hand held swab. The 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:
Five of the nine products removed over 97% of the varnish in five minutes of immersion cleaning. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon.
Cleaner
Initial wt
Final wt
% Removed
Ak 225
0.0825
0.0612
25.82 (Paint peeling)
0.0582
0.0299
48.63
0.2139
0.1562
26.98
Vertrel CCA
0.1419
0.0980
30.94
0.2263
0.1477
34.73
0.1158
0.0803
30.66
Flux Remover C
0.1147
0.0865
24.59
0.0874
0.0695
20.48
0.1276
0.0995
22.02
HFE 7200
0.1784
0.1522
14.69
0.0777
0.0733
5.66
0.1300
0.1151
11.46
Ensolv
0.0850
0.0017
98.00
0.0385
0.0017
95.58
0.0997
0.0020
97.99
Ensolv A
0.0817
0.0020
97.55
0.2707
0.0027
99.00
0.1999
0.0023
98.85
Metalnox M6960
0.1420
0.0005
99.65
0.1522
0.0035
97.70
0.2053
0.0022
98.93
Solvon PB
0.1371
0.0004
99.71
0.2841
0.0005
99.82
0.1712
0.0007
99.59
Solvon IP
0.0704
0.0017
97.59
0.0971
0.0012
98.76
0.1262
0.0009
99.29
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The five products that were successful at removing the varnish should be tested using vapor degreasing.
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