Talk Composites - The Forum for Advanced Composites

Organic form sofa in CF

http://www.talkcomposites.com/Topic30553.aspx

By jawaswag - 9/29/2018 10:48:06 PM

Hi all!

I am intending to create an organic form sofa in CF. It's somewhat similar to the picture I've included below but a much smaller 2-seater version. My limitations are that I do not have space for a curing oven. Here are my concerns:

1) If I cannot cure an item in an oven, it means I will have to use room temperature cure resins and the means a hand layup method?

2) What can I make the mould out of? Is it a frame of wood with PU foam block for the the shape? If I do, how do I vacuum bag such a large mould?

3) Since the mould is likely to be a 'pool'-shaped form, can place a sheet over it and fill it up with water as a replacement over vacuum bagging? Would the high specific heat capacity of water affect the curing of the resin as it pulls heat away?


.

Cheers and thanks in advance,
Kai
By Steve Broad - 10/1/2018 2:22:12 PM

 
oekmont - 10/1/2018 9:33:18 AM
Yes, Steve, but the mould isn't suspended in a 10m pool. This would actually work like an autoclave without heat, if you bag the mould and evacuate the air. The mould is just filled with water. And this will not work, because of the reasons I mentioned earlier.

Filling the mould with water certainly wouldn't work, which is why I said you need 10m of head :-) Pretty academic, anyway as it isn't gong to happen.