Vacum press air bubbles

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Vacum press air bubbles

Post by barnaba » Mon Feb 10, 2020 11:12 am

Hi, I'm new to this group :)
I hope you will be able to help me.
I have made about 20 snowboards and a few pairs of skis so far, but in some bards I have a problem with air bubbles between the fiberglass and base material. These air bubbles only come out where the bending of the nose and tail begins.
I use a heated vacuum press (up to 80 celcius degrees, 0,9 kg per cm), 2mm aluminum sheet and base material, fiberglass, woodcore, carbon fibers, verneer etc.
Has anyone had a similar problem?
I will be grateful for any help :)
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Re: Vacum press air bubbles

Post by vinman » Tue Feb 11, 2020 3:01 pm

Air bubbles in the base or topsheet are most likely due to inadequate pressure.
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Re: Vacum press air bubbles

Post by Hannes » Wed Feb 12, 2020 8:53 am

I had that problem once. I am using a vacuumsetup as well. During pressing the suctionhose got clogged with fleece and resin so the gauge told me everything was fine, but it wasn´t. since then I use a long hose with several holes in it.

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