Thread Tools
Jul 22, 2019, 09:53 AM
Registered User
Thread OP
Discussion

How do I glass a balsa plane?


Okay, working on my first large balsa plane. Plane is full skin. I am hoping to add some durability to the plane without adding too much weight.

I have seen lots of options, but not sure what to do.

I have seen .5 - .75 glass cloth used with epoxy or polyurethane. Is this the way to go? What finish do you put over it?

is there any good How-tos on doing this?
Sign up now
to remove ads between posts
Jul 22, 2019, 10:33 AM
Duane, LSF IV
Wazmo's Avatar
This is for a sailplane, but the concepts should be the same.
http://augiemckibben.tripod.com/site...5_glassing.pdf

I've heard from a pattern builder that, once the epoxy has cured enough to be firm but still sticky, you can rub microballons (Q cells) into the glass to help fill the weave and need less primer and sanding to finish.
Aug 02, 2019, 05:26 PM
Registered User
Gratter's Avatar
.75 to 1 oz glass is good to create a surface to paint. If you need some strength the use at least 2 oz.
Aug 02, 2019, 06:57 PM
Old-school glow kit-builder
lee taylor's Avatar

Microballoons ease sanding


Quote:
Originally Posted by Wazmo
I've heard from a pattern builder that, once the epoxy has cured enough to be firm but still sticky, you can rub microballons (Q cells) into the glass to help fill the weave and need less primer and sanding to finish.
I purchased some microballons just the other day, at a hobby shop. Imagine that. I was so shocked to see them I could not pass them up. I feel sure the microballoons will do what you claim. It is what they are designed to do!

I suppose you could use a salt shaker as an applicator. Not sure how well the partially cured resin will take to rubbing


Quick Reply
Message:

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Question How do I glass a balsa plane? nikbrewer Balsa Builders 26 Jul 24, 2019 12:40 PM
Help! I am building an RC plane out of balsa. How do I decide airfoil,wing size , geometry captainteague Scratchbuilt Indoor and Micro Models 6 Dec 23, 2015 03:06 PM
Question How tight do you have to mount servos on balsa planes? FloBau Electric Plane Talk 23 Oct 09, 2015 07:10 AM
Discussion Building all balsa 1/2a planes, how do I .... digdugb17 1/2A Planes 7 Nov 26, 2008 07:55 PM
Question how do i glass foam planes? cmulder Painting and Finishing Tips 1 Dec 02, 2007 06:03 PM