Talk Composites - The Forum for Advanced Composites

Resin infusion flat panels

http://www.talkcomposites.com/Topic12901.aspx

By Exocet - 9/18/2014 12:26:19 AM

Hi a beginner question.

I would like to make two carbon panels approx 2mtrs long by 0.5mtr wide. The panels need to be flat and have a very good gloss and pin hole free finish.

I was intending to use 4 layers of 2/2 200g of carbon fibre and purchase a resin infusion starter kit from EC.

For my mould I have an old glass shower door which I was planned to use. I choice this as its flat, and hopefully will give a good finish.

Is this likely to work? what problems do i need to look out for? and what will the finish be like on shower door side of the panel and the peel ply side of the panel.

Comments/ advice greatly appreciated, this is a big step for me so your pointers and help will be most valued. Thanks in advance.

john
By chrisg - 12/19/2014 12:07:47 PM

Dravis (25/11/2014)
The big difference between using high pressure and high vacuum is what happens to tiny amounts of gas left in the resin/laminate .

A trapped bubble that would be microscopic under high pressure will be clearly visible in vacuum ...

So: If the tiny outgassing from the resin can not be moved away by the vacuum -- you get pinholes -this is why you need a good breather layer, perforated release film and a slightly resin-rich layup, before vac-bagging it.
De-gassing the resin before use also helps.






Thanks for your time and help.