[NSRCA-discussion] Reparing a de-laminated ARF wing

[Bob Harden]

Hello Ed,

 I have had good success in the past repairing foam sheeted wing panels where the bond did not hold.  I went to the drug store and bought some insulin syringes (they have a fine needle) to use that I could penetrate just through the balsa to the bond line.  I used  thin  foam compatible CA in the syringe and injected every couple of inches in the unbonded area.  This worked very well and saved my wing panels. 

Hope this idea is useful.

Bob
  ----- Original Message ----- 
  From: Ed Alt 
  To: nsrca-discussion at lists.nsrca.org 
  Sent: Saturday, December 30, 2006 2:27 PM
  Subject: [NSRCA-discussion] Reparing a de-laminated ARF wing


  I'm looking for a good method for repairing an area of of sheeted foam wing where it is not fully adhering, roughly 30 sq" in area.  Current thoughts are to try to inject some polyurethane glue just under the surface, maybe a laminating epoxy instead.  The tough part seems to be how to get sufficient coverage right under the skin without going too deep.  The wing is already covered and I'm thinking that one method might be to use a suction cup and gently pull the skin away to assure a gap so that a needle would get the glue in between.  Any thoughts on this?

  Thanks

  Ed 


------------------------------------------------------------------------------


  _______________________________________________
  NSRCA-discussion mailing list
  NSRCA-discussion at lists.nsrca.org
  http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20061230/2e7ed3d2/attachment.html