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Moisture cure RTV materials have certain strengths that make them an important player in the gasketing world. Unlike UV cure gasket compounds that cure virtually instantly upon exposure to UV, moisture cures can take several hours before they can be handled and they require a little more maintenance than UV cure materials as well - it's more difficult to keep humidity away from a moisture cure than it is to keep UV away from a UV cure! On the plus side, they do not have to be translucent like many UV cures (unless you have a dual UV/moisture cure like Loctite 5950) and this allows some unique properties - ones that enable silicones to survive in the engine compartment with high heat and oil contact. Also on the plus side: they tend to be far less costly than their UV cure counterparts!
Dispensing RTVs requires a few additional considerations:
1) A purge cup that can isolate the open dispense tip from moisture in the air
2) Larger material pumps with rams to get reasonable production rates
3) Material lines that present reasonable moisture barriers.
All of the usual gasketing tools have roles to play as well: vision, needle calibration, height measurement, and bead profile stations are all essential tools.
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