Looking for Casting Wax Brand for PPAP Vibration test


Clara Violet

?We submitted products for AEC-Q200 PPAP Vibration test and the products failed. The customer recommended for us to add casting wax to the boards, but did not recommend a brand or datasheet for us to use. Is there anyone that is familiar with the use of Casting Wax for vibration failure resolution?? This is a process (Casting Wax) that we are new to so would appreciate any info received.


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Are these printed circuit boards where larger mass components (e.g., electrolytic capacitors) fail such as fatiguing the through wire leads?

In some applications RTV will work. However, the need for anything whether wax or RTV to pass shock and vibe tests is a sign of inadequate design practices.
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