[NSRCA-discussion] Wing Cores

[wgalligan]

Jay,

You gotta try the urethane glues.  Once you do you wont go back.  Much easier then epoxy and the stuff expands and fills in voids and the bead areas of the foam.  
Get some and try it on a test piece and try to pull the pieces apart.  Then notice how far the foam penetrates the foam.
You will like it...   ;-)

Wayne Galligan
  ----- Original Message ----- 
  From: Jay Marshall 
  To: 'NSRCA Mailing List' 
  Sent: Friday, December 28, 2007 7:54 AM
  Subject: Re: [NSRCA-discussion] Wing Cores


  I tried the contact method with the JWR Blue adhesive last night; I coated both balsa and foam surfaces, waited 15 minutes, and pressed them together. Worked fine. Now I have to make a choice between this or epoxy for sheeting.



  Jay Marshall 

  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of J N Hiller
  Sent: Friday, December 28, 2007 5:36 AM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] Wing Cores



  I used 3M-77 for years because it was quick & easy. Contact cement is very unforgiving and twisted / warped wing panels needed to be dealt with occasionally. I am somewhat more patient now and use finishing resin epoxy.

  Jim Hiller 



  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Nat Penton
  Sent: Thursday, December 27, 2007 12:37 PM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] Wing Cores



  Jay

  I will be interested to see how you come out if you have the foam supplier cut your cores. High taper ratios ( two or more ) call for smaller cutting wire. Who and where is the supplier located - I need some foam ?



  Is the the JWR Blue adhesive similar  to 3M 77 contact adhesive ? If so you want need the vac bag. Most builders use epoxy or polyurethane glue for wing skinning.            Nat

  ----- Original Message ----- 

  From: Jay Marshall 



  To: 'NSRCA Mailing List' 

  Sent: Wednesday, December 26, 2007 11:11 AM

  Subject: Re: [NSRCA-discussion] Wing Cores



  Thanks Jimmy. I found a local source that provides foam board, blocks & shapes for many applications, including packaging and constructions forms. They cut four blocks of 1# to 4X36X18 and then gave me a can of glue to try - all at no cost. Great people to work with! They can even cut the wings if I provide the masonite templates! 



  Jay Marshall 

  -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of jimmy graver
  Sent: Wednesday, December 26, 2007 12:03 PM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] Wing Cores



  Jay, I am looking to cut foam wings also this a source I found for foam.  http://www.aircraftspruce.com/catalog/cmpages/styrofoam.php

  I buy my spruce from them and there service is good. Hope this helps.

  Jimmy Graver

  ----- Original Message ----- 

  From: Jerry Stebbins 

  To: NSRCA Mailing List 

  Sent: Tuesday, December 25, 2007 5:23 PM

  Subject: Re: [NSRCA-discussion] Wing Cores



  Jay, depends on where you are. There are places in/around Atlanta--check with Mike Hester-he buys all the time.ACH foam Technologies.  I just bought 7 sheets in Nashville. Mix of 0.5 and 0.9 oz foam (virgin). Company was EFT Corporation. Might try them.1 615-832-6222.

  Jerry

  ----- Original Message ----- 

  From: Jay Marshall 

  To: nsrca-discussion at lists.nsrca.org 

  Sent: Tuesday, December 25, 2007 3:48 PM

  Subject: [NSRCA-discussion] Wing Cores



  What is a good material and source for wing cores? I have someone to help cut them.



  Jay Marshall 




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