Conformal coating adhesion and no-clean residue
Residues create poor wetting and adhesion for conformal coatings. To ensure coating longevity:
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test adhesion per IPC-TM-650 and manufacturer protocols,
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perform plasma or solvent wipe pre-coat when residues are marginal,
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consider a post-reflow cleaning step prior to coating.
ZESTRON’s coating compatibility studies help choose coatings and pre-treatments that stick reliably.