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Black Diamond
Vice Admiral Joined: 24 October 2015 Location: Newport, RI, US Status: Offline Points: 923 |
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OK... I can officially declare that the HPM Membrane sails
(Elvstrom EPEX technology) do NOT last as long as they are touted. The
sail looked fine in May when we took our early sails, but between May
and August the delamination progressed at a blinding speed. In fact,
this past week it failed catastrophically and we had a devil of a time
getting it down as the delaminated cloth jammed in the luff extrusion
along with the bolt rope. So now we need a new sail. This
is the middle of year six. We liked the sails performance wise, but
they promote them as being 8-10 year sails and that is just not the
case. Both the local ELVSTROM guy as well as my local QUANTUM guy
tell me that 6 years for a membrane sail is " pushing it". I'm
going back to a tri-radial hydranet sail. They have some new dyneema
(vs spectra) variants but its still a woven cloth that can be cut in a
tri-radial pattern and needs no laminates and therefore no chance of
delamination, no chance of mildew between layers, and much better
"repairability" than a membrane sail. Bottom line: if you want a long lived sail, I'd advise staying away from membrane technology. It will perform well, but not age well. Quantum or Elvstrom or North or whomever... The
hydranet sails I built for my prior boat in 2007 were still fine when I
built the 575 in 2017. The new owner has still got them on the boat
5+ years later and swears the main still looks and performs like new. Going back to what works.
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Rick
S/V Black Diamond Hanse 575 Build #192, Hull# 161 Newport, RI |
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