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Monday, June 6, 2016

Clean Parts: How to Spot Them

Several tests exist to help you to determine the cleanliness of your parts. The most common test is the “water break free” test. This test is used to observe whether the liquid draws away from or beads on the cleaned parts, or if it fully sheets over them.
Alternative assessments to the “water break free” test include:
  • Wiping with a white cloth
  • Alcohol drop tests
  • Coulometry (organic soil burned off substrate, measured)
To get recommendations on evaluating the cleanliness of parts, never hesitate to contact a pretreatment supplier.

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