Re: [Paddlewise] Modifiying Plastic boats

From: alex <al.m_at_3web.net>
Date: Thu, 17 Apr 2003 14:01:30 -0700
> I would like to upgrade my seat and rudder peddle system and possibly add
an
> optional down wind sail.  The problem is that my kayak is a plastic
> Perception Eclipse.  These these modifications require drilling new holes
> and filling existing ones.  I am very very concerned about the hull
> cracking, or getting too spongy after too much sugery.  Have any
experience
> or ideas about this?

In addition to the technology used by Nielsen Blaauw, here are
recommendations by Mark Balogh for mast holes. I'm planning to install his
*upwind* sail rig and outriggers (removable, of course) on both PE and
folding kayak, so progress is slow. Use keyhole saw (looks like mini hand
saw), or hole-saw (actually a 4-5 cm wide drill bit).  For keyhole saw
you'll need to drill an 8-10 mm hole first, to insert the tip of the saw.
My PE Prijon Seayak manual recommends using manufacturer's PE sticks of the
same colour and hot-glue gun to fill the holes.  I think it's a good idea to
heat the hole edges as well, but with what?  I'm not sure that hair-dryer
will do the job.  Portable heat gun (blower) neeeds caution - it's
powerfull, may over-heat the plastic around the hole and cause hull
distortion.  Rudder will have to be replaced with a rudder for double kayak,
and it may not be enough, since sail area is large and mast will be far from
the bow.  It's less of a problem with a small downind sail. What worries me
is those plastic brackets holding the rudder asssembly at the stern -
sailing will cause more stress on them.  Balogh allso recommends to epoxy
mast-step to the hull, I didn't come to that stage so far, but have read
(New South Wales kayaking website? not sure)  that epoxy won't stick well to
PE, and that you need to do these works in a hot weather (don't know why).
One thing is good with those PE kayaks - they are cheap, no fear of mistakes
:-)...
Alex.
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Received on Fri Apr 18 2003 - 04:15:22 PDT

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