PolySpan    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> "1/2 A" & "1/8 A" airplanes >> PolySpan
Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
PolySpan - 6/18/2012 8:25 PM   
1/2 jorgen


 

Posts: 3
Score: 100
Joined: 4/17/2011
Last Login: 5/23/2013
From: Hägersten, SWEDEN
Status: offline 		Hi does anyone have used Randolh butyrate over Polyspan .

Hide Signatures
       Post #: 1

RE: PolySpan - 6/18/2012 8:31 PM   
dgliderguy



Posts: 407
Score: 115
Joined: 12/13/2001
Last Login: 5/23/2013
From: Snohomish, WA, USA
Status: offline 		I have found it is best to do a coat or two of nitrate dope first, then follow it with butyrate, for better adhesion to the fibers.

_____________________________

Glider junkies creed: No glider, no lift, no reason to live.

Hide Signatures

(in reply to 1/2 jorgen)
       Post #: 2

RE: PolySpan - 6/18/2012 9:06 PM   
vertical grimmace



Posts: 4406
Score: 154
Joined: 3/13/2004
Last Login: 5/23/2013
From: ft collins , CO, USA
Status: offline 		Randolphs is not much different than sig's and I have heard Brodak's dope is Randolph's. Randolphs works very well.

_____________________________

"let''''s just say, they will be satisfied with less" Ming the Merciless

Hide Signatures

(in reply to dgliderguy)
       Post #: 3

RE: PolySpan - 6/18/2012 11:02 PM   
buzzard bait


 

Posts: 2490
Score: 115
Joined: 1/2/2003
Last Login: 5/23/2013
From: Ithaca, NY, USA
Status: offline 		I don't think the issue is the brand, it is butyrate vs. nitrate. Nitrate has a reputation for giving better adhesion. I used doped Polyspan on one plane and liked it very much. I'm pretty sure I used nitrate for the first two coats. It sounds like the post above comes from experience, but I would be interested in hearing how butyrate worked, or didn't, as a base coat. Sig says butyrate is fine directly on Koverall, so I'd expect it to be OK on Polyspan too, but I haven't tried it.

Jim

Hide Signatures

(in reply to vertical grimmace)
       Post #: 4

RE: PolySpan - 6/19/2012 6:21 AM   
mylamo


 

Posts: 520
Score: 104
Joined: 9/19/2003
Last Login: 5/23/2013
From: Mission, TX, USA
Status: offline 		Butyrate was all I knew after we started using alkahol fuels.
I covered many planes with silk , nylon , and silkspan using
nothing but butyrate. Being poor and living close to a small
town airport a sympathetic group saw to it that we had all
the dope we needed. They were not considered pushers in
those days. Planes were heavy but fun.
Ralph

Hide Signatures

(in reply to buzzard bait)
       Post #: 5

RE: PolySpan - 7/20/2012 8:48 PM   
samchamp


 

Posts: 1
Score: 100
Joined: 12/18/2006
Last Login: 3/25/2013
From: Moneta, VA, USA
Status: offline 		I've used Polyspan with Randolph Butyrate dope and almost all my competition Free Flight planes including 1/2A planes and 96" Lanzo Bombers, A SAM type old timer plane.
No problem at all and it's a fantastic covering product. I use a foam brush available in Walmart for brushing it on.
Larry Davidson

Hide Signatures

(in reply to buzzard bait)
       Post #: 6

Page:   [1]
All Forums >> RC Airplanes >> "1/2 A" & "1/8 A" airplanes >> PolySpan
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.188RCU1