Composites Central

Go Back   Composites Central > General Composites Discussions > Composites Talk

Reply
Old 12-23-2015, 01:09 PM   #11
steyrn

Member
 
Join Date: Nov 2013
Location: Spain
Posts: 16
Thanks: 5
Thanked 2 Times in 2 Posts



Default

If you donīt want to utilize two different resins, first shot with polyester tooling resin is also ok, but build it in two shots is important to achieve better quality tooling
steyrn is offline   Reply With Quote
Old 12-23-2015, 01:10 PM   #12
berridos

Composites Expert
 
Join Date: Feb 2011
Location: madrid
Posts: 202
Thanks: 2
Thanked 3 Times in 3 Posts



Default

The layup you propose would save 1 kg per m2, if I count 1,1kg of resin per layer of 450g/m2 mat. With such a thick layup schedule, dont you get elevated exothermal reactions?
Using Coremat looks to me in this context as an intelligent solution. Like it.
Do you have any preference between nord rm2500, rm2550 or rm3000?

Last edited by berridos; 12-23-2015 at 01:17 PM.
berridos is offline   Reply With Quote
Old 12-23-2015, 01:31 PM   #13
Michiel

Composites Expert
 
Join Date: Jul 2012
Location: Netherlands
Posts: 460
Thanks: 8
Thanked 49 Times in 37 Posts



Default

I think you are thinking wrong here, a good mold is heavy (in this case). Maybe you can save 10 or 20 kilo on your mold but does that make a difference ? It will be a heavy mold and it will be difficult to handle or it is 150 kilo or 200 kilo. On a 10 m mold I whould think about making it stronger and not lighter.

I prefer optimold over rm 2000 and rm 3000 because price, smell, heat and the wetout of the glas.
Michiel is offline   Reply With Quote
Old 12-23-2015, 01:32 PM   #14
steyrn

Member
 
Join Date: Nov 2013
Location: Spain
Posts: 16
Thanks: 5
Thanked 2 Times in 2 Posts



Default

No problem with exotherm, I prefer RM 1000/50 itīs slow cure time.
steyrn is offline   Reply With Quote
Old 12-23-2015, 01:37 PM   #15
berridos

Composites Expert
 
Join Date: Feb 2011
Location: madrid
Posts: 202
Thanks: 2
Thanked 3 Times in 3 Posts



Default

Thanks for your help. Will ask the distributor for information on RM 1000/50. Didnt knew that product.
Just wonder if laying on one side three layers and on the other side of the coremat 2 layers could produce distortions due to the asymetry.
Quote:
I prefer optimold over rm 2000 and rm 3000 because price, smell, heat and the wetout of the glas.
I believe Nord resins are cheaper than OPtimold. A sandwich structure should be stronger I believe.
berridos is offline   Reply With Quote
Old 12-24-2015, 02:56 AM   #16
ASB

Member
 
Join Date: Jul 2012
Location: NSW Australia
Posts: 95
Thanks: 3
Thanked 12 Times in 12 Posts



Default

180 kg for a 10 sq m mould is not heavy. Mount it on wheels and put plenty of lifting points on it. There is a reason why shops with large moulds have plenty of chain blocks.
ASB is offline   Reply With Quote
Reply

Bookmarks

Tags
alternatives, molds, polyester

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 11:35 PM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.

Inactive Reminders By Icora Web Design