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Marc S Smith's avatar

I saved mine for 30 years and used it on my next boat. I had to heat the base in 140 degree water for a while to turn the crystals back into liquid but otherwise it worked fine. In my experience, if stored properly, it does not separate, evaporate or degrade. It just sometimes crystalizes but can be restored by warming it to 140 degrees Fahrenheit.

Dan Phy's avatar

I use mine throughout the year to repair anything & everything!!

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