Ground corecell

Discussion in 'Materials' started by fallguy, Aug 20, 2017.

  1. fallguy
    Joined: Dec 2016
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    fallguy Senior Member

    I am putting 2-3 mm rebates in my 12 mm corecell build with an electric planer. I have already got about a gallon of ground corecell. It is similar to ground wood sawdust, not really flourlike.

    Any concerns over using ground corecell mixed with epoxy for a fillet material? It seems like it might be far less brittle than epoxy and cabosil, but perhaps a similar net density (on a hunch). I was wondering about using it for a fillet at the bow actually, just like sawdust in a canoe.

    Taking the concept a step further, any ideas as to other uses of ground corecell? All my small cutoffs seem like they could be recycled into the same byproduct. If I have wastage of 10%, and equate that back into dollars; the wastage will exceed $1,000 in core.

    I don't want to use my electric planer to do the grinding work because it is an essential tool for the build, so also wondering if anyone has any ideas for an easy way to grind corecell into a homogenous substance.
     
  2. Mr Efficiency
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    Mr Efficiency Senior Member

    I doubt it has much value to you, the virtue of it lies in the expanded material, not ground down to dust. Would it be any more useful than a ground PVC pipe ? I doubt it. What plastic fillers are used in resin ?
     
  3. Tungsten
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    Tungsten Senior Member

    I see no problem using it as a filler,heck ground up paper works.Mix with a little ground up glass and cabosil, will work a treat.
     
  4. Mr Efficiency
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    Mr Efficiency Senior Member

    I don't think he was worried about it being a "problem", but trying to recover some of the outlay by using the scrap from it. I'd say it is a wasted effort, there are far better ways to get strength and working properties. And I'd not be using water absorbing paper at all. Any offcuts can be joined up into a sheet, like a patch-work quilt, for use on a flat panel at least. You can glue them together with hot glue, e.g.
     
    Last edited: Aug 21, 2017
  5. SamSam
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    SamSam Senior Member

    The first thing I'd try for grinding the foam up would be to put pieces on the driveway and using a concrete block back and forth. Sift the results through some window screen or such for uniformity.
     
  6. SamSam
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    SamSam Senior Member

    Are rebates a common way of doing things? Are they tapered or just uniform depth?
     

  7. Sparky568
    Joined: Jan 2017
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    Sparky568 Junior Member

    My question would be what are you using the filler for? If it is structural I would try some testing. You may be limited to a certain thickness. I've never used ground core for filler but, in a pinch I have used ground resin from my sander catch bag.
     
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