Recent Content by Herman

  1. Herman
    Thread

    Calculating sealant thickness for acrylic windows

    I am wondering if there are fixed guidelines or manufacturer recommendations for calculating the thickness of sealant for installing windows...
    Thread by: Herman, Apr 11, 2020, 4 replies, in forum: Boatbuilding
  2. Herman
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    Confused on the order to do layup

    Clean up the wood, till you are at solid ground. Grind away the cracks as suggested. You will be grinding away most part anyhow, around the wood....
    Post by: Herman, Aug 13, 2019 in forum: Fiberglass and Composite Boat Building
  3. Herman
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    Help on selection of core material

    You mention the scantlings. On what rules are these based? Lloyds, GL, ABS, ISO 12215? Some give more thickness than others. There are lots of...
    Post by: Herman, Aug 13, 2019 in forum: Materials
  4. Herman
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    RIP Mr. Paul [PAR] Riccelli

    I have been away from the forum for probably some 5 years, but I am shocked to hear Paul passed away. My thoughts are with his familiy. Paul was...
    Post by: Herman, Aug 13, 2019 in forum: Boatbuilding
  5. Herman
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    Tyvek over the vacuum.

    http://www.dd-compound.com/ Much can be read here.
    Post by: Herman, Mar 23, 2014 in forum: Fiberglass and Composite Boat Building
  6. Herman
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    Honeycomb core for infusion?

    Re. weight savings: I have tried another variety (Nidacore) which was not particular light either. (at 5 lb/ft3 / 80 kg/m3). Resin uptake was...
    Post by: Herman, Mar 14, 2014 in forum: Fiberglass and Composite Boat Building
  7. Herman
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    vacuum infusion system

    I have sent you a message, might have something useful for you.
    Post by: Herman, Feb 15, 2014 in forum: Fiberglass and Composite Boat Building
  8. Herman
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    How are fiberglass plug made with complex curves?

    http://www.youtube.com/watch?v=PM4WGsLpxws Removal of boat at 2:40-ish
    Post by: Herman, Feb 6, 2014 in forum: Fiberglass and Composite Boat Building
  9. Herman
    Post

    Mixing Ve resin.

    Peroxides containing H2O2 give a foaming effect. Ask your supplier for a suitable peroxide. Also, counting drops for me is not the way to go....
    Post by: Herman, Jan 7, 2014 in forum: Fiberglass and Composite Boat Building
  10. Herman
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    Skin thickness

    Strengthwise the CSM does not bring much. Thickness, yes. From a structural point of view I would take a lower weight CSM, or no CSM at all. The...
    Post by: Herman, Jan 5, 2014 in forum: Fiberglass and Composite Boat Building
  11. Herman
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    Filling thru hull holes

    Chamfer should be about 8:1 minimum. For a 3/4" thick laminate, filled from both sides (so 3/8" is the short side of the chamfer) the long side...
    Post by: Herman, Dec 27, 2013 in forum: Fiberglass and Composite Boat Building
  12. Herman
    Post

    Skin thickness

    I entered biax400 into my Excelsheet, and at 50% Vf (fiber to volume fraction) I get 1,27 mm for 4 layers. So your measurement of 1,5mm is not...
    Post by: Herman, Dec 27, 2013 in forum: Fiberglass and Composite Boat Building
  13. Herman
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    Lightened Strip Plank Idea

    I am already lost on how to get 2x2' s on 4" centers...
    Post by: Herman, Dec 23, 2013 in forum: Materials
  14. Herman
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    For sale / trade: Professional Boatbuilder Magazine

    Epic bump...
    Post by: Herman, Dec 6, 2013 in forum: Marketplace