If you have ever had aged two part epoxy glue in plastic bottles develope "whiteish" looking solid crystals in one of the bottles, don't throw it out as I have discovered a way to rejuvenate it. It works like new again after becoming liquid again by heating in a microwave oven. Be careful as you don't need the bottles to explode in your microwave. Usually only one of the two parts developes this problem Heat for no more than one minute at full power in your microwave and experiment with added seconds of heating until the crystals disappear and it flows as a liquid again. I have used this heating method for years and the epoxy works fine and shows no signs of weak wood joints. Also, aged epoxy glue seems to decrease in viscosity after many years and heating in a microwave for a short 20 or 30 second burst will make it flow much easier so that you can get the da...n stuff out of the bottle! It works for me!
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