Vinylester and PVC foam (Divinycell)?

Discussion in 'Fiberglass and Composite Boat Building' started by DennisRB, Jan 24, 2014.

  1. DennisRB
    Joined: Sep 2004
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    DennisRB Senior Member

    Is this a commonly used and good matching of materials? Does it result in a reliable bond resistant to delamination?
     
  2. AndrewK
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    AndrewK Senior Member

    YES to all
     
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  3. DennisRB
    Joined: Sep 2004
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    DennisRB Senior Member

    Thanks. I thought so. Just double checking on some naysaying have been hearing.

    Its pretty easy to see on the catana website since they use VE, PVC and Kevlar which is all used in the boat I am considering.
     
  4. pescaloco
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    pescaloco Senior Member

    Yes it is a good combo

    you just want to watch out for a dry bond on the foam
    I like to pre wet the foam with a fairly thick coat of resin, then use a layer of mat as your first material
     
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  5. Mr Efficiency
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    Mr Efficiency Senior Member

    When I've used Divinycell, I used light half-ounce ( I think ? ) mat against the foam, then the unidirectional or biaxial. I have seen no signs of delamination from the foam, the glass layers will delaminate from each other before that happens, imo.
     
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  6. rwatson
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    rwatson Senior Member

    Check with the manufacturers of the foam for suggestions.

    I seem to remember they recommend a product called Dyvellete or similar, a thickened resin, as the interface between the foam and glass.


    PS - found the product info
     

    Attached Files:

    Last edited: Jan 25, 2014
  7. waikikin
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    waikikin Senior Member

    Core bedding putties are used typically in contact molded situations, great products & low stress when used with contour cut foam.
    Jeff.
     

  8. redreuben
    Joined: Jan 2009
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    redreuben redreuben

    When using Divilette and contour foam wrap a bit of heavy plastic around a cheapy orbital sander and use that to vibrate the foam into the bedding.
    If you are doing a large areas you may want to invest in an air driven vibrating roller.
     
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