Easy & vari-preg use with UDs & Nomex


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c01df1sh
c01df1sh
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Hi,

I am pondering a new boat build which will, in all eventuality, comprise making the hulls (it's a catamaran), foils, beams and maybe even a mast. I am pretty impressed with the Easy-preg option for an off the mould finish, ready for paint directly - I don't want the weight penalty of a gel coat if possible. The hulls would be a Nomex sandwich and I assume that this would be OK with a 215 gsm vari-preg layer (don't want to go to the 430 or would the experts recommend a resin layer? If so, where do I get this as there is nothing on the Easy Composites site that looks like it fits the bill. I'd like to work on a single vacuum / over cure rather than doing curing the layers individually.

My second train of thought is how to incorporate UD layers in the vari-preg system. The cat's beams, foils and mast will be a UD dominated laminate, so I will need to work this out! Again, is there sufficient resin within the vari-preg backing layer to co-infuse UD layers, or again will a resin layer be required?

Got to build an oven of course, but I'd like to get the construction resolved in my head at least.

Thanks for the great tutorials.

Cheers

Andy
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Matthieu Libeert
Matthieu Libeert
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I'm following warren and ChrisR on this one,
A lot of companies doing big parts still use infusion. 
Using prepreg isn't like using a carbonfiber sticker you can easily apply and move on, you have to be very careful in the lay up, and it can take you some time.
sometimes I'm working more than one hour on a small 30cm by 20cm part to get everything correct, cutting the prepreg templates can be time consuming, the lay up can take a lot of time, then you need to debulk and bag under a perfect vacuum without any air leak. 

But I wont say its impossible and its good that you are dedicated to do it that way! 
Keep us updated on the progress once you start!

Best of luck

Matthieu Libeert
Founder MAT2 Composites X Sports
website:
www.mat2composites.com




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