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The ridiculously high cost and short shelf life put me off sugru, but looking in to it did lead me to a handy and cheap DIY alternative - clear silicone mixed with corn starch. I don't know how the 'rubbery' property compares to sugru after it sets up, but it worked nicely for my needs.

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Its shelf life is advertised as something like 1.5 years if you keep it in the fridge. Just the other day I used some that must be about three years old and it worked fine.

Yes, the short shelf life is what turned me off, too. For my quick repairs I found myself using only a fraction of the smallest packets they sell, leaving the rest to dry out unused. And after needing it a few months later and finding it unusable I never bought anymore.

I'm going to try your recipe.

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