To determine the efficacy of modified alcohol Metalnox M6386 chemistry in removing various industrial soils without the assistance of vacuum vapor degreasing equipment.
Date Run:
08/10/2026
Experiment Procedure:
Three Aluminum coupons were assigned to each of 2 industrial soils; Hocut 759 oil and Phillips Multiplex FS 220 Grease. Each coupon was weighed using a gravimetric balance and had their initial weights recorded. Each coupon was then soiled with a pea sized amount of the appropriate soil using a swab to spread it across the surface of the coupons. Each coupon was weighed again and had their dirty weights recorded. The coupons were then immersed in a beaker of the Metalnox M6386 modified alcohol with a stir bar set to 200rpm for 10 minutes. Upon removal from the beaker, the coupons were allowed to air dry for 1 hour before being weighed and having their final weights recorded.
Analysis:
The recorded reflectance values of each coupon were used within an equation to generate a percentage representative of how close the clean reflectance value is to the initial reflectance value. It estimates how closely the coupons were returned to their original state after vacuum vapor degreasing. The equation is as follows
%=(Rclean-Rdirty/Rinitial-Rdirty)X100
Trial Results:
Soil
Initial wt of cont.
Final wt of cont.
%Cont Removed
% AVG
Hocut 795
0.2070
0.0138
93.33
94.27
0.2093
0.0134
93.60
0.2007
0.0083
95.86
Multiplex FS 220
0.2041
0.1853
9.21
10.84
0.1951
0.1721
11.79
0.1981
0.1753
11.51
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 Metalnox M6386 modified alcohol was successful in removing the Hocut 795 oil but was unsuccessful in removing the Multiplex FS 220 Grease.
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