Josh: Room Temperature Vulcanizing (RTV) is Dow Corning's trade name for it's family of silicone cure sealants. RTV is about the worst kind of coating there is. Its chemistry is highly ionic and it requires atmospheric humidity absorbed to "complete" its polymerization. Many types depend even on strong acetic acid to work. We've gone off on RTV several times previously here on SMTnet. So, we'll spare the regulars [some eye-rolling, "there they go again", rude sounds, etc] and suggest that you search the fine SMTnet Archives, if you want more.
We agree with Ms Chunky that: * This one very coo connector. * Dipping probably will allow a thinned conformal coating to underflow the connector. It will be a little tricky to dip the connector and not entrap air under the connector though.
We Question: * Why you want to conformal coat under the connector? * Would an encapsulant meet your customer specification? * What is the purpose [goal] of applying conformal coating? * Returning to your picture, what is that nasty looking bluish/greenish stuff on the connector?
IPC-HDBK-830, Guidelines for Design, Selection and Application of Conformal Coatings says:
A conformal coating may have several functions depending on the type of application. The most common are: * Inhibit current leakage and short circuit due to humidity and contamination from service environment. * Inhibit corrosion. * Improve fatigue life of solder joints to leadless packages. * Inhibit arcing, corona and St. Elmo's Fire. * Provide mechanical support for small parts that cannot be secured by mechanical means, to prevent damages due to mechanical shock and vibration.
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