T&T: A financial decision/canvas work

[Faure, Marin]

If you're going to tackle making your own canvas, be it covers, bimini
enclosures, or whatever, don't overlook the importance of the thread.
Thread breaks down a lot faster than the fabric will, and when the seams
go and things start flapping around, that's usually what destroys the
canvas.  The absolute best thread for outdoor canvas work is Tenara,
made by the Gore-Tex folks.  It is staggeringly expensive, considering
the price of "normal" thread--- I've seen Tenara listed on the internet
between $125 and $300 per spool.  My wife bought hers from an internet
supplier for the lower price.  But it is damn near indestructible.  It
stands up to UV, mold, mildew, moisture, salt, chemicals, you name it.
Most quality canvas shops (awnings, boat canvas, etc.) use Tenara.

The sewing machine has to be set up specifically for Tenara as far as
the tension goes, and there are tip sheets for using this thread that
specify the proper needle sizes.  But the secret to longevity (we have
discovered) in outdoor canvas work is the thread.  Sunbrella has a very
long life, but if the seams go that life will be shortened considerably
unless the seams are resewn.  So you might as well do them right the
first time with a thread that will last as long or longer than the
fabric.  Tenara seems to be the only thread that will do this
consistently and reliably.  Our experience with it has been impressive.

______________________________
C. Marin Faure
GB36-403 "La Perouse"
Bellingham, Washington