I have used Coates XZ93-S peelable resist (soldermask)
with Omikron immersion tin with good results on
prototype boards. There was no indication of attack to
the resist.

John Cestaric
Proto Circuit
--- [log in to unmask] wrote:
> To all,
>      I have seen an instance where it will attack
> White Tin Immersion, there
> are components in the peelable soldermask such as
> ammonia that are not very
> friendly to this particular surface finish.  I have
> not finished collecting
> all the data concerned so I don't know the amount of
> time the mask was left
> on and how well it was cleaned.
>      Just giving everyone the heads up!  If there
> are any of you that have
> experience with White Tin Immersion and peelable
> solder mask please let me
> know.
>
> Thanks,
>      Steve Wentz
>      Florida CirTech
>
>
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