Release now or be patient?

Talk Composites - The Forum for Advanced Composites

Back

Release now or be patient?

Author	Message
nutz	nutz posted 11 Years Ago Topic Details
Group: Forum Members Posts: 14, Visits: 58	Ok, so I laid up a fibreglass mold on Sunday and just seeing what peoples opinions are on when i should pop the mold, patience is starting to get the better with me as i want to get on with things. Its been 3 days, should i leave it for another 4 days (i.e. 7 days) or will it be fine to pop now? Temperature in the shed has been a constant 8 degrees Celsius at the moment. Tags when to release mold
	Reply Like 1
_GABBER	_GABBER posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 41, Visits: 646	with PE, VE or epox resin? To my knowlegde, 7 days are with 20°C temperature, not 8°C.... You should heat the mold at least 20°C. With epoxy resin then you have to post cure it
	Reply Like 2
nutz	nutz posted 11 Years Ago Post Details
Group: Forum Members Posts: 14, Visits: 58	Hi, its Polyester
	Reply Like 1
fgayford	fgayford posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 433, Visits: 1.2K	nutz (30/01/2013) Hi, its Polyester Hi My experience with polyester is that it cures faster than epoxy. Your pretty cold there. If you can get a heat lamp and get it up to warm to the touch that should be enough to get it cured enough. (it will continue over time anyway) If you tap it with a screw driver blade and it sounds hard like steel your good. If it sounds like cheese or wax your not there. When its cold I increase the amount of hardener which helps. ( note : only for polyester NOT epoxy) Hope this helps. Fred
	Reply Like 3
Matthieu Libeert	Matthieu Libeert posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	In my opinion it's almost impossible for polyester to cure properly with those temperatures... polyester will need around 17°C to kick off Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
	Reply Like 3
Jack.Strong	Jack.Strong posted 11 Years Ago HOT Post Details
Group: Forum Members Posts: 52, Visits: 549	Agree with Matt, your just stuck in the gel time
	Reply Like 2
mikew	mikew posted 11 Years Ago Post Details
Group: Forum Members Posts: 56, Visits: 128	You should warm that up pronto. Bring it inside!!!
	Reply Like 1