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Chafe patches on mainsail - Hunter 356 / 36

Discussion in 'Big Boats' started by karellen, Dec 27, 2017. Add this thread to a FAQ

  1. karellen


    Joined Jan 5, 2017
    12 posts, 0 likes
    Hunter 356
    US SF Bay / Delta Benicia
    I'm adding chafe patches to a new mainsail on my 356. I have measurements from the boom to the spreaders, but I'm not sure about how big to make the actual patches, as far as height and length. Any suggestions?

    Thanks in advance...

  2. Rick D

    Rick D

    Joined Jun 14, 2008
    6,386 posts, 125 likes
    Hunter Legend 40.5
    US Long Beach, Shoreline Marina, CA
    My sail maker provided adhesive patches for me to apply after I had a good idea where the chafe would likely occur. After a couple of months, I could see where the sail was rubbing. I think the patches were about 7-8 inches.

  3. SG


    Joined Feb 11, 2017
    690 posts, 96 likes
    J/Boat J/160
    US Annapolis
    Usually you need to use rectangular patches with rounded coreners. It's best to actually locate the patches by seeing where you "rub". It varies depending on vang, out haul and (if you rig a) preventer.

    I'd put a temp "sticker" where you think it the patch(es) should be, then move it around until you are sure. Then actually apply the patch in the right place. The patch, if re,over leaves a residue that can attract dirt.

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