CA vs Expoxy - RCCanada - Canada Radio Controlled Hobby Forum
RCCanada - Canada's Radio Control Hobby Forum
General RC Aircraft Discussion Discuss anything RC related

Closed Thread
Thread Tools Display Modes
Old 12-28-2008, 12:00 PM   #1
RCC Junior Contributor
retiree_caf's Avatar
I am: Y R
Join Date: Oct 2008
Location: Ottawa, Ontario

Feedback: 0 / 0%
Posts: 218
Total Props: 0
CA vs Expoxy

       Remove this ad - become a site supporter!
Newbie question. When should I use CA or Expoxy on a new built? Is one better than the other?

Just wondering.

MAAC 80229
Per Ardua Ad Astra
retiree_caf is offline   Quick reply to this message.

Sponsored Links - Subscribe to remove this ad.
Old 12-28-2008, 12:21 PM   #2
always flying
RCC Supreme Contributor
always flying's Avatar
I am: Manny H
Join Date: Jul 2004
Location: Lethbridge,Alberta
Radio of choice:
Futaba 2.4
# of RCs: 5

Feedback: 12 / 100%
Posts: 3,288
Total Props: 8
Re: CA vs Expoxy

When building CA & apoxy have their places..mostly the instructions tell you when they are needed,For high strength areas i use apoxy!

Pour me another One!
FUTABA 14MZ Yeah Buddy!!
GP123cc Beast Mode All Day All Day!
always flying is offline   Quick reply to this message.
Old 12-28-2008, 12:26 PM   #3
RCC Senior Contributor
I am: Al E
Join Date: Jul 2007
Location: Miford, Nova Scotia

Feedback: 7 / 100%
Posts: 693
Total Props: 3
Re: CA vs Expoxy

I see from your post you fly electric.

Epoxy is heavy. For an electric build I'd use almost exclusively CA and only use epoxy on high stress areas like the firewall and landing gear mounts.
Papa Sharptooth

Bouncing about the living room, my then three year old grandson declared himself "a kangaroo".
"If you're a Kangaroo, what is Grampie", I ask.
His reply: "you a dinosaur"
astrofler is offline   Quick reply to this message.
Old 12-28-2008, 01:13 PM   #4
I am: Boolean21
Join Date: Sep 2002
Location: Singapore

Feedback: 0 / 0%
Posts: 38,228
Total Props: 56
Re: CA vs Expoxy

CA tends to be light but brittle, and is readily absorbed by porus materials.

One of the best resources that you can read are the Harry Higley books, especially "There Are No Secrets" (1991) which has a chapter that decribes the various types of glues and their advantages and weaknesses.

Good tight fits are always best and not amount of thick or gap-filling will overcome that, and may actually make matters worse.

Dig around on the internet for articles on the uses of epoxies and resins.

My experience is that resins and epoxies are used in places like attaching firewalls, fuel-proofing, skinning foam wings or applying glass cloth (molding parts or covering fuselages and/or wings) where the weight of the material is outweighed by the strength and flexibility.

CA is used for gluing parts to parts (cement).

Both work best under the basic rule "less is more" (I call this the miniskirt principle for some testosterone-driven reason).
PurgatorY is offline   Quick reply to this message.
Old 12-28-2008, 01:48 PM   #5
Gary Maker
RCC Supreme Contributor
I am: Gary M.
Join Date: Jul 2003
Location: Stoney Creek, Ontario
Radio of choice:
Spektrum DX8
# of RCs: 7

Feedback: 25 / 100%
Posts: 7,331
Total Props: 9
Re: CA vs Expoxy

Just to add a note to what has already been said, personally, I use CA when glueing balsa to balsa. If glueing plywoods, bass wood or pine, which are denser woods, I like to use epoxys.

CA glues on harder woods, may work somewhat but, doesn't have much time to soak into the wood before it sets up, whereas epoxy does, as it sets up much slower. And if you want a more superior bond, then a slower setting epoxie is even better. On my shelf, I have epoxies ranging from 5 min setup times right up to 3 hours.

When fuel proofing firewalls and tank installation areas for example, I will use the 3 hour epoxy as it has plenty of time before setting up, to soak into the plywood, giving those areas sure fuelproofing protection and it won't crack or peel off!

As I said, this is what I personally do based on my own personal experience!
Stoney Creek Hawks RC
MAAC No. 43659

Radios used: Spektrum DX6i
Current builds: 1/4 scale J3 Cub & Neiuport 17 and KMP B-25.
Currently flying: Scratched Tele 40, Parkzone Stryker & 60" SPAD Debonaire


"Time flies like an arrow - fruit flys like a banana." Groucho Marks
Gary Maker is offline   Quick reply to this message.
Old 12-28-2008, 03:32 PM   #6
RCC Senior Contributor
yakityyak's Avatar
I am: Andrew Collins
Join Date: Jun 2007
Location: Milton Ontario

Feedback: 1 / 100%
Posts: 540
Total Props: 0
Re: CA vs Expoxy

On a side note, new adhesives are available as well and are worth researching. Poly's such as Gorilla glue or Probond are good examples of this. They also can be used to bond foam to balsa in sheeting applications.

A builder I follow on FG who worked for NASA for 17yrs in the structural materials division, testing glues, plastics, wood, metals, and the like seems to use expanding glues such as poly's whenever possible and accredits this to the light weight and strength of the bond.

yakityyak is offline   Quick reply to this message.
Closed Thread

Quick Reply

Register Now

In order to be able to post messages on the RCCanada - Canada Radio Controlled Hobby Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Member names may only be composed of alpha-numeric characters. (A-Z and 0-9)

!!ATTENTION ADVERTISERS!! If you intend on advertising anything on this forum, whatsoever, you are required to first contact us here . Additionally, we do NOT allow BUSINESS NAMES unless you are an Authorized Vendor. If you own a business, and want to do sales on this site via posting or private message, you will need to follow the rules. Shops, Stores, Distributors, Group Buys without being authorized will see your account terminated.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Your Name
Your first name and last initial is required if you plan on using the forum.
Which city & province you live in. This is mandatory for classified listings.
Radio of choice?
Which radio is your current favorite to use?
Number of RC Vehicles?
How many boats, cars, planes do you own?


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

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

Thread Tools
Display Modes

Forum Jump

All times are GMT -5. The time now is 12:42 PM.

vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.