Wax Removal and Aircraft Parts

Question: We are currently using perchloroethyene vapor degreasing to remove masking wax from aircraft components.


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Question:

We are currently using perchloroethyene vapor degreasing to remove masking wax from aircraft components. Do you have any suggestions on what process we can use to replace vapor degreasing? A.R.

Answer:

A recent paper, Plating & Surface Finishing, 87(2), 18-19, 2000, discusses a process using a proprietary dewaxing chemical, hot water and an alkaline cleaner. The process is successfully used by a major airline. The steps in the process are:

  1. Hot water wax removal
  2. Chemical wax removal
  3. Hot water rinse
  4. Second hot water rinse
  5. Non-etch alkaline cleaner
  6. Hot water rinse

The paper gives the pros and cons of the process.

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