To identify possible cleaning alternatives for resin, starch and pva.
Date Run:
04/25/2005
Experiment Procedure:
Eight products were selected from the laboratory's database of test results based on client supplied information. Each product was used straight at room temperature (68 F). A small amount of each product was applied to small section of the supplied dirty part. The cleaning solution was allowed to sit for one minute and then wiped off using a hand held swab. Observations were made for each product for the amount of soil removed. A water wipe and dry wipe were also conducted to establish a benchmark for performance.
Contaminant Mix:
Starch - National Starch & Chemical Kofilm 280
Starch - National Starch & Chemical Dur-o-set H102
Resin - Eastern Color & Chemical Ecco Resin 8800 (108-05-4, 75-07-0)
Alcohol - Celanese Ltd. Celvol Polyvinyl alcohol (25213-24-5) Coating - Degussa Corp Dyhard T03 coating additive
Trial Results:
All of the products selected appeared to remove more of soil mix than water or dry wiping. Some of the products foamed when the part was wiped with the swab. These products may have less foaming if used at a diluted concentration.
Cleaner
Observation
Rank
Bio T Max
Swab turned brown/black after wiping
3
DBE 6
Swab was darker than Bio T Max
2
Ionox HC 2
About the same as Bio T Max
4
Micro 90
Less than Bio T Max, foaming
6
Inproclean 3800
About equal to Bio T Max, foaming
5
SC Aircraft & Metal Cleaner
Equal to Micro 90
7
VPW SC 1000
Darkest swab
1
Organic Cleaner/Degreaser
Least dirt removal, foaming
8
Water
Less than SC Aircraft & Metal cleaner
9
Dry
Very little removal of soil
10
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.
Conclusion:
Each product showed signs of removing the soil after a short contact time. Further testing on supplied parts should be conducted to verify performance under conditions similar to operating conditions. Testing can be conducted when more parts are sent to the lab.
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