[bolger] Re: Canvas as sail material?
I've made a couple of sails of polytarp last summer. Yes, it is
sewable and tape able. I used double stick fiberglass reinforced carpet
tape with good results. I used Jim Michalak's dart method of giving
shape to my Wind Sprint type balanced lug sail 117 ft sq. I made this
sail of a dark green poly and at least here in Florida it got so hot in
the direct sun then it softened the glue on the tape and some corners
started to lift. I went back and sewed all edges - so it's a bit of the
belt & suspenders solution now. I've since acquired some white polytarp
at a flea market that I've yet to try. I suspect the white will stay
cooler and not need stitching. I'm also eager to try some Tyvek as the
final product seems more sail like and less wrinkle prone, though that's
just a guess. I think these inexpensive materials are a great way to
learn about sail making. For 10 or 20 bucks and a few hours of enjoyable
work you end up with a very service able sail. The low investment also
encourages "tweaking" and endless experimentation... upsides and
downsides to that of course....;-)
Chuck Leinweber wrote:
> >I'd be
> > interested in knowing if people have taken the trouble to construct a
> > carefully crafted sail from polytarp, tyvec, etc...multiple cambered
> > multiple layered corners, and everything. Is it worth the trouble? Are
> > materials sewable? Can you heat seal or glue them? Seems they could lend
> > themselves to being a great way for the aspiring sail maker to learn the
> > craft without wasting a lot of dacron and $$ in the process.
> > jeb, not fooled for a minute by the tropically warm February weather on
> > shores of Fundy
> Some polytarp sailmakers are creating shape by the simple process of making
> darts in them. I have not made but one polytarp sail a number of years ago,
> but will soon need another one for my Caprice. I plan to use this method.
> Jim Michalak has written about this subject:
> Chuck Leinweber
> Duckworks Magazine
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