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

[John Ferrell]

I would be inclined to slit it open whatever it takes and pump some laminating epoxy in through a flattened brass tube. The poly adhesive might generate enough pressure to make the condition worse. An ear syringe will generate the pressure to load/unload the tube. 

A CA repair in the area or over zealous cleaning (brake cleaner?) sometimes dissolves underlying foam. I hope this is not the case!

John Ferrell    W8CCW
"My Competition is not my enemy"
http://DixieNC.US

  ----- Original Message ----- 
  From: Ed Alt 
  To: nsrca-discussion at lists.nsrca.org 
  Sent: Saturday, December 30, 2006 3:27 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 


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