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You may be thinking, these skis are now garbage, and you would be absolutely right. They should be thrown away and none of the below should be attempted. However, I was in possession of a tube of JB Weld and a mountain of lockdown-induced boredom.
The through-crack in the edge gave me a convenient mid-point. I mashed as much epoxy into one side of the gap as I could, clamped the dickens out of it, and let it cure for 24h.
Here's the result of step 1:
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I then repeated the process on the other side of the crack:
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After curing I scraped away most of the excess epoxy with a box cutter. I might sand it flush or I might leave it as-is in all its horrendous glory. Here's the final result:
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NS, what's the verdict? Should I take these bad boys to the resort and try to throw some dubs? Or will they explode immediately upon contact with PVC, killing me instantly?