RE: [Paddlewise] (Paddlewise) Plastic is Perfect!???????????????? not!

From: Chuck Holst <CHUCK_at_multitech.com>
Date: Mon, 6 Dec 1999 09:54:05 -0600
>>
I however revert to the "ram it full speed up the beach to keep my feet 
dry approach" once I have gotten a couple of scratches in the gelcoat 
anyhow. 
>>

Me, too. Gelcoat, being harder than polyethylene, doesn't scratch as
easily. Though I try not to scratch my fiberglass kayak unnecessarily, I
don't think I really treat it that much differently than a polyethylene
kayak when launching and landing. Take a look at the photos of seal
landings and launches in the British sea kayaking books -- those are
fiberglass boats they are using!

>>
Of course if I had a rotomolded plastic kayak I'd do the same thing to
try
to minimize the fins and curly-Q's that fuzz up the plastic and disrupt
the
smooth flow of water around the hull by sticking up into it. If I put a
scratch in fiberglass it scrapes away some material rather than plowing
it
up into the boundry layer where roughness can really add a drag penalty.
>>

Most of the scratches on my three-year-old fiberglass hull are less than
the thickness of a fingernail.

>>
Not only are they likely to be different than the designer intended but
once
they come out of the mold they aren't the same as others out of the same
mold. 
>>

One reason I sold my old Sea Lion was that it was hogbacked -- shallower
in the center than at the ends. Every Sea Lion I looked at had this
"feature." I was told this was a product of the molding process, and
that the original plug did not have it. Also, I know someone who has a
permanent dent in the deck of his polyethylene kayak where he bungies
his water bottle.

>>
I tried unsuccessfully to find the newsletter article I read a few years
back about the roof rack with four kayaks on it that slid off the roof
of a
car. Given the reputed toughness of plastic the occupants we surprised
that
even though it was one of the middle kayaks on the rack it was the
plastic
kayak that shattered and the fiberglass kayaks suffered either only
minor
easy to repair damage or some scuffs. If I recall correctly the plastic
kayak was way beyond repair and offered in the newsletter to anyone who
might want it for use as a planter.
Some of my customers had a simialr experience.
>>

I think it was Bill Newman who once told me about a similar incident
during the  winter. Bill?

Chuck Holst
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Received on Mon Dec 06 1999 - 07:55:12 PST

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