General Electric Discussions Talk about topics related to e-powered RC flying

Epoxy VS CA on balsa wood?

Old 09-06-2008, 08:01 AM
Thread Starter
747's Avatar
Join Date: Sep 2007
Location: Downingtown PA
Posts: 240
Default Epoxy VS CA on balsa wood?

I had a minor crash landing. Have to glue some balsa inside the Fuse. Not a big repair...
But just in general - When does one use Epoxy VS CA on balsa wood?
Can I just use CA for minor fixes? Which is stronger?
747 is offline  
Old 09-06-2008, 08:45 AM
Super Contributor
hillbille's Avatar
Join Date: May 2007
Location: Barstow, California
Posts: 1,055

On balsa wood the CA is by far the better choice as it is quicker, lighter, and penetrates and strengthens. Epoxy in and of itself is strong but has little penetration unless very long time hardning mixture is used. Epoxy is at least 10 times heavier than CA. Use epoxy on all load bearing joints around motor mounts and wing saddles/joiners/dowels and CA just about everywhere else.

hillbille is offline  
Old 09-06-2008, 09:04 AM
Join Date: Dec 2006
Location: Lafayette, LA (Heart of Cajun Country)
Posts: 204

For the most part epoxy is stronger than CA in high stress areas. CA usually requires a tight fit because it does not fill well whereas epoxy will fill quite well. Because of the slower curing time epoxy will seep into the pores of the wood better than CA. CA tends to make a brittle area around the joint and epoxy has more flex even when it is fully cured. I know it does not seem to have any flex but it does. The slower setting time epoxy is usually stronger than the fast setting epoxy. Epoxy will allow you time to place broken parts in place and properly aligned. CA will set just about as soon as the two surfaces touch and you may not get proper alingment. CA sets better when it is used on fresh wood. Many times repairs done with CA will separate at the glue joint later because the CA was not able to penetrate into the wood during the repair. CA is great for original construction where speed is required. Epoxy is best for high stress areas and where hard woods or plywoods are used. I will admit the CA Gels and slow set formulas have expanded the use for CA but I still trust epoxy more.

proffcharlie is offline  
Old 09-06-2008, 03:40 PM
Combat Vet
Liquidity's Avatar
Join Date: Jul 2007
Location: GA
Posts: 2,049

If it is non load bearing, us CA. If it carries a load, Epoxy.
Liquidity is offline  
Old 09-07-2008, 12:10 AM
powerlines's Avatar
Join Date: Oct 2006
Location: Mid GA
Posts: 359

I CA Everything.. It does make it a little brittle though..

powerlines is offline  
Old 09-07-2008, 12:32 AM
Super Contributor
CHELLIE's Avatar
Join Date: Oct 2006
Location: Hesperia, So. Calif
Posts: 19,264

Originally Posted by Liquidity View Post
If it is non load bearing, us CA. If it carries a load, Epoxy.
I Agree with Liquidity, thats what I do too, take care, Chellie
CHELLIE is offline  
Related Topics
Thread Starter
Last Post
Scratch and Kit Built Aircraft
03-11-2009 04:47 AM
New Product Announcements
07-02-2008 09:10 PM
Scratch and Kit Built Aircraft
04-23-2007 04:42 AM
Field Equipment For Sale & WTB
10-29-2005 03:29 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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

Quick Reply: Epoxy VS CA on balsa wood?

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.07181 seconds with 15 queries