If your customer is calling out a specific thickness then you will have to
put controls in place to ensure the thickness is achieved. One of the key
variables besides the dip speed would be the coating viscosity. This can be
verified with a viscosity cup. It tells the viscosity by timing how log it
takes to empty a pre-measure amount of coating. You adjust be adding
thinner or more coating.
Got yas - The coating can be more intrusive then spray coating so you have
to be careful if you are coating unsealed parts.They may require extra
masking Especially connectors and switches
Joel Alexander
APSCO Quality Assurance Manager
"Joseph H. Smith"
<agkettle@NETSCAP
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01/10/2006 04:40 [TN] Manual conformal coat dipping
PM process
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Fellow technetters.
Anyone out there have experience with 'manually' dip coating conformal
coat. I have never done the dipping coating process. Machine spray and
hand spray I have done. The concept sounds simple enough but I was looking
for advice on process got ya's or issues to watch for when doing the
dipping. Our customer is requiring the dipping process and currently
doesn't wish to spend the money on more automated equipment.
Andrew Kettlewell
Sr Process Engineer
Sypris Electronics
Tampa, Fl
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