Post curing times for a large part


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stuart321
stuart321
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I'll be infusing a pretty substantial sumpguard at the end of the week and interested in any advice on how critical post curing times and temps are for best mechanical strength on a flat panel.

The tech data sheet for IN-2 resin states 24hrs room temp, 60hrs@40, 6hrs@50, 12hrs@60 but for large parts decrease the thermal gradient and increase the post-cure time - I was planning to double the timings IE 2 days room temp 12/12/24hrs for higher temps - does this sound about right?

The stack is 1000 x 900mm  and almost flat, across the whole part will be 2 layers of 300gsm kevlar, 1 layer of CF 200gsm, 1 layer of 3mm soric, 1 layer of CF 450gsm, 1 layer of CF200gsm, additionally in areas which need additional strength or tend to abrade there will be extra soric / CF / kevlar so the stack could be as much as 10 layers thick in a few places.

Any pointers appreciated!
Thanks
Stuart
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