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Plating Cert and Letter of conformity

Discussion in 'APQP and PPAP' started by Aman M, Sep 11, 2020.

  1. Aman M

    Aman M New Member

    Oct 4, 2019
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    Can anyone help me with understanding the difference between a Plating Cert and Letter of conformity from the Plating supplier. Can these be substituted for an actual Salt Spray Test, if required on a PPAP.
  2. Golfman25

    Golfman25 Well-Known Member

    Nov 6, 2015
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    It's going to depend on what your customer is looking for and how much they understand plating. The cert just says they did what they said they where going to do -- plate to a certain specification. The salt spray test is an actual test of the plating bath to ensure that it provided sufficient protection. I have had customers who wanted both. I think many platers do salt spray tests regularly as a way of monitoring/proving their chemistry, so you might be able to substitute those results for a test on actual parts. Like I said, it will all depend. There is also a CQI-11 plating system assessment they might ask for.