To replace ineffective aqueous product for carbon black removal from plastic holding racks.
Date Run:
01/30/2009
Experiment Procedure:
Nine products were selected from the lab's on-line database, www.cleanersolutions.org, based on past testing results matching client supplied information. All of these products were diluted to 5% using DI water in 400 ml beakers and heated to 130 F on a hot plate.
Plastic coupons were coated with the carbon black contaminant using a handheld swab. Three coupons were immersed into each solution and cleaned for 5 minutes using stir-bar agitation. Rinsing was performed for 15 seconds using tap water heated to 120 F and followed by 30 seconds of air blow off with dry compressed air at room temperature. Final observations were made, and products were ranked visually for performance.
Trial Results:
Not a lot of the carbon black was removed from the surface using immersion cleaning. The Detergent 8 resulted in the most removal as determined by the soil deposits left in the beaker after immersion cleaning.
Product
Rank
Sea Wash 77
2
Daraclean 238
5
SC-100
4
Heavy Duty Degreaser
6
EnviroCare Tough Job Cleaner
7
Spartan - Tribase
3
EnviroOne - Muti-use cleaner
8
Detergent 8
1
Safe-Tee Injection Mold Cleaner
9
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Additional testing will be conducted using spray cleaning products.
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