Talk Composites - The Forum for Advanced Composites

Delaying a Post Cure.

http://www.talkcomposites.com/Topic24335.aspx

By Olivier - 11/25/2017 7:22:03 PM

Hi,
Is it possible to postpone the post-curing cycle?
I mean build the mould and let it cure at ambient temperature then perform the post-cure cycle  after 2 months when my oven is available?

What would be a correct post-cure temperature for a carbon glider that will be exposed to extensive sun heat during summer?
I am thinking 100C for moulds and 75 for parts?

Thanks for your support
Olivier
By Hanaldo - 11/27/2017 12:51:54 PM

When you say glider, do you mean like a RC glider or an actual full-size sailplane?

If it's the latter, I would not recommend doing exposed carbon. It isn't actually allowed here in Australia, and for good reason - in full sun you will see excessively high temperatures. You would need a pre-preg cured above 150C for it to be stable.