The 3 oils were selected in order to match the contaminants encountered by the client. Table 1 list CAS #s of the 3 oils and compares them to the client oils. Table 1 CAS#’s of Selected Oils.
NAME
CAS #
GEAR OIL
TRACTOR
MOTOR
Citgo Sliderite 220
64742-52-5
64742-01-4
X
64742-62-7
X
Citgo Cutting
64741-89-5
X
Oil 120
64742-65-0
X
Citgo Cutting
64742-65-0
X
Oil 425
64741-88-4
X
X
X
64741-89-5
X
64742-54-7
X
X
Each oil was applied to pre-weighed aluminum coupon. The coupons were placed in an oven for 20 minutes at 160 F. Coupons were allowed to cool to room temperature and weighed again. Three coupons were placed in each cleaner for two minutes with stir bar agitation at room temperature. Coupons were then rinsed in tap water for 30 seconds also at room temperature. Parts air dried and then weighed one more time.
SUBSTRATE MATERIAL: Al-202-6061 T-4
CONTAMINANTS: Citgo Cutting Oils 425 & 120, Sliderite 220 CONTAMINATING PROCESS USED: Applied the oils using a swab.
Trial Results:
All six of the chemistries cleaned very well. The Daraclean product had a dramatic increase in efficiency when compared to the previous trials. The other products tested were consistent with the results from the other trials. Table 2 lists the cleaning efficiencies from this trial and Table 3 compares results obtained in the other experiments.
Table 2. Cleaning Efficiencies from Trial 4
Safety Kleene
Soy Gold
SolSafe
Daraclean
SuperNeutral
Zep Dyna
Coupon 1
99.8
88.9
95.1
99.3
99.1
99.7
Coupon 2
99.9
90.1
96.8
99.5
98.3
99.8
Coupon 3
99.9
90.2
96.8
99.3
95.9
99.7
Ave
99.9
89.7
96.2
99.4
97.8
99.7
Table 3. Average Percent Removal From All Testing
Trial #
ZEP Dyna
BioChem
SupNeut
Soy Gold
D-282
D-232
D-Greeze
Safety Kleene
1
97.8
96.3
90.7
83.9
62.8
45.2
77
NT
2
NT
NT
89.5
NT
72
79.5
NT
NT
3
99.7
96.2
97.8
89.7
99.4
NT
NT
99.9
Success Rating:
A follow up test, usually based on company input.
Conclusion:
Having compared the current cleaners to the client’s suggested substitutions, it is apparent that there are several choices available. In making the switch, cleaning efficiency will remain the same as is evident from the percent removal of the tested cleaners.
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