[Wing] Microballoons

[Marc Degirolamo]

If the dent is in the aluminum I would just use a automotive type of filler such as bondo or any other lightweight filler......clean and scuff aluminum first and apply.....sand smoth with a block sander, feathering all edges. Epoxy with microballoons is OK too, but will want to slump as epoxy takes longer to set up than polyester resins......mix to the consistency of dry peanut butter and apply. 
Marc
RV-4....flying
  ----- Original Message ----- 
  From: Della & Robert Kennett 
  To: wing at vansairforce.org 
  Sent: Saturday, January 12, 2002 11:10 AM
  Subject: [Wing] Microballoons


  I have a couple of small dents that I would like to fill.  Early in my project, the inspector said that if I had some inperfections (I didn't have any at that time....) , they could be filled with microballoons.  Is this good advice?  What sort of preparation would be needed?  Should the surface be primed first or would scuffing/etching be sufficient?  The other product I have considered is Superfil, but I already have some epoxy resin and microballoons for the fibreglass work.

  Thanks

  Rob Kennett, Westbank BC
  RV6A (wiring and other loose ends)
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