Good evening

I was wondering if it is possible to make a part that needs a split mould without the use of a curing oven. The latter is pretty much keeping me from trying prepregs as I can't use my domestic oven because I can't get a vacuum line in there and buying one isn't in the budget. Getting an old domestic oven just for this purpose where I can make a hole would be possible but I also don't really have the space for setting up a second oven...

My idea was to use a very slow curing hardener, i.e 210 or 300 minutes, and then hand lay up the carbon and epoxy inside the two parts before closing them and then add the vacuum bag and just wait until it's cured. I think the curing time would be plenty long enough but the big question is will the hand layup stick well enough to the mould so that it doesn't come loose in the process or how can it be made to stick well enough? Has anyone done this and can share some experiences?

Kind regards
Martin

i would like to point out, that in my opinion, hand lamination looses its benefits once you start vacuum bagging. because with the same same tools, you could also do an infusion for the same money, and you will get a far superior part out of it. if you do it right, the risk of failure decreases dramatically, as you have infinite time getting everything down correctly. and most likely you will still end up with significantly less working time, as the surface will be much better.