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Trial Number 1

Trial Purpose:

To replace ineffective aqueous product for carbon black removal from plastic holding racks.

Date Run:


Experiment Procedure:

Nine products were selected from the lab's on-line database,, 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.


Additional testing will be conducted using spray cleaning products.

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