We have never seen this before. We are posting these PICS to try to get an answer on this deformity in the base. We sanded the bases to show the depressions.
The cassettes are clean and 3/8' thick so it isnt the cassettes or mold. The two skis in the picture were pressed at the same time. One ski is perfect, the other organically screwed up. We heated the press at no more than 120F.
As far as we can tell it is an epoxy issue. perhaps the epoxy started to cure before we pressed leaving voids?? Anyone see this before??
I'm gonna say it's heat, despite what your T/C may have indicated. I had the exact same thing happen to me on a pair of skis last year. Looks almost identical.
ReplyDeleteWe figured it out. Most definitely heat. We cooked it, epoxy "gased" out, water in bamboo also possibly "cooked". We are pressing for one hour at room temp then ramping up heat slowly through cure. 50psi at 72F for one hour, 50psi at no more than 120 on the tc/blanket from the bottom only. We find bottom only gives us better camber hold. We also are doing a better job with the edge shoulder/rabbet as we now make sure the .4mm/.0155" is accommodating for with core. Epoxy is not a filler!
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