Both the RTVs and Liquid Electrical tape are known for short life after
opening. The RTVs have a relatively short shelf life even when not
opened.
I've found that putting the Liquid electrical Tape cans into a small
fruit jar (Mason Jar) the gasketed kind extends the life of the material
almost indefinitely.
I keep the tubes of Silastic RTV (TM) calk in either Tupper ware
containers or brand-X. I have both opened and unopened tubes that I
purchased before retiring (in 96) that are still good. The squeeze
tubes must breathe at least a little as the smell of acetic acid is very
strong when the top is taken off the plastic container even when the
tubes within have have never been opened.
73
Roger (K8RI)
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