Go Back  RCU Forums > RC Airplanes > Beginners
Using Polyreuthane instead of Epoxy >

Using Polyreuthane instead of Epoxy

Notices
Beginners Beginners in RC start here for help.

Using Polyreuthane instead of Epoxy

Old 04-01-2017 | 07:48 AM
  #1  
Thread Starter
Junior Member
 
Joined: Jan 2016
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default Using Polyreuthane instead of Epoxy

I am in the process of covering my Top-Flite P47-Thunderbolt with 3/4oz. fiberglass and need to know if anyone has used clear polyurethane instead of Z Epoxy.
Old 04-02-2017 | 12:55 AM
  #2  
TomCrump's Avatar
 
Joined: Apr 2003
Posts: 7,614
Likes: 0
Received 5 Likes on 5 Posts
From: Traverse City, MI
Default

My last two models were glassed, using polyurethane (oil based) and .58 cloth.
Attached Thumbnails Click image for larger version

Name:	DSCN0250.JPG
Views:	57
Size:	3.67 MB
ID:	2208044   Click image for larger version

Name:	m_002.jpg
Views:	47
Size:	692.0 KB
ID:	2208045  
Old 04-08-2017 | 08:07 PM
  #3  
Moderator
 
Joined: Dec 2006
Posts: 7,266
Received 35 Likes on 30 Posts
From: Fort Worth, TX
Default

Water based poly has been used by lots of people to glass planes with. If it's meant to be a base for painting it will work fine. If it's structural, it will probably still work fine. I've glassed with resin and WBPU and can't really say one is easier than the other. Both have their benefits.
Old 04-09-2017 | 03:55 PM
  #4  
j.duncker's Avatar
My Feedback: (2)
 
Joined: Jun 2004
Posts: 4,045
Likes: 0
Received 2 Likes on 2 Posts
From: Sailing in the Eastern Caribbean
Default

Water based polyurethane is definitely not as strong as epoxy and the final finish is a little softer. So if it is structural strength you are after then go down the epoxy route.

However you can apply several coats of water based polyurethane in a day and it is easier to rub down.

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
Trackbacks are Off
Pingbacks are Off
Refbacks are On


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.