BLOG 59. HOW TO WINTERIZE
YOUR CANOE OR KAYAK
by Cliff Jacobson
I live on the Wisconsin-Minnesota border where winter stops
boating cold. Snow arrives in late
October and hangs around till May or when insanity sets in, whichever comes
first. By Thanksgiving, even
die-hard paddlers have garaged their canoes and waxed their skis!
Spring often comes suddenly to Vikingland, and serious
paddlers want to be prepared for the first nice day. So, they repair and winterize their boats before they store
them away. Everyone has an
annual ritual. Here's mine:
CLEAN OUT THE GOOBERS
Wash
the hull inside and out. Flush
under the decks of canoes, and deep into the ends of kayaks. You won't believe how much debris
accumulates there. Gummy tree sap
and ground-in dirt can be safely removed with a wet sponge and
"Soft-Scrub®" kitchen cleaner. I use Star-brite®. a commercial hull
cleaner for serious stains and scum lines.
REPAIR GEL-COAT
It's easier to repair chips on fiberglass/Kevlar canoes if
you don't follow the canoe maker's instructions. Gel-coat is runny and difficult to get
a good color match. Here's my
method:
Materials: White polyester putty (available at
marinas) or auto body bondo. For
the strongest repair, mix colloidal silica or strands of chopped fiberglass
with epoxy. Important: use
boat-building epoxy, not quick-cure hardware store stuff. Sixty and 100 grit
sandpaper, and 200 grit wet-dry finishing paper; color-matched auto acrylic
spray paint, paste wax and pumice. Note: gel-coat is purely cosmetic—it adds no
strength to the laminate, so it probably doesn’t matter what you use—that is,
as long as the resin sticks to your canoe. I recommend epoxy because it is
compatible with epoxy, vinylester and polyester hulls.
ROYALEX
Tears and gouges in Royalex are easily repaired with
epoxy. You’ll get a stronger,
longer lasting repair if you sand off the thin vinyl layer that covers the ABS
substrate before you begin. Then,
just fill in the damaged area with epoxy resin thickened with micro-baloons or
other thickener. When the resin is
rock-hard, sand it smooth then spray paint to match the hull. Use fiberglass and/or Kevlar cloth to
repair major damage. Epoxy degrades in ultra violet light so apply 303
Protectant to your finished work.
Procedure:
1.
Pick out the shards of damaged gel coat with the blade of a knife.
2. Catalyze polyester putty (use extra
MEKP to produce a hot mix) and work the peanut-butter-thick mix into the break
to over-flowing. Thicken epoxy
resin with colloidal silica. Caution:
be sure to wear a mask when mixing colloidal silica. The fine particles go deep into the lungs!
3. When the putty is firm, slice off the
excess with a knife. Allow the
remainder to cure completely then sand it level with progressive grits of
sandpaper. Finish to silky
smoothness with 400 grit wet sandpaper.
4. Spray paint the patch with matching
auto acrylic. When the paint has
dried, use paste wax and pumice to
blend the paint to match the hull.
If you have a natural gold Kevlar canoe (or one whose color you can't
match), mask a short artificial water-line along the stem (photo) and paint the
masked area an attractive color.
APPLY ULTRA-VIOLET
PROTECTANT
It’s wise to apply an ultra-violet inhibitor (I recommend
303 Protectant®) to the hull at the start of the season and again before you
store it away. 303 hides light scratches--gives a slick new look!--and prevents
sun damage. To hide deep
scratches, apply Penetrol® (available at hardware stores) and buff with a
cotton rag. Afterwards, apply a finish coat of 303 Protectant.
TORQUE THE TRIM
Canoes flex as you paddle; screws work loose and thwarts and
seats crack. The vibrations of
car-topping also have an effect.
Nuts and bolts should be tightened at least once a season, and again
before winter storage.
Tip: owners of wood-trimmed Royalex canoes are advised to
remove the gunnels (near the decks) of canoes that will be stored in
sub-freezing weather—uneven rates of material expansion cause Royalex to crack.
Here’s a better plan: Unscrew the wood the rails about two
feet back from each end, then slightly enlarge the screw holes in the Royalex
(just the Royalex!). Then, screw
the rails back in place. The Royalex will shrink when it gets cold but it won’t
crack because the enlarged screw holes won’t pressure the screws. Another
option is to horizontally slot the screw holes in the Royalex. You need only enlarge or slot the holes
near the ends; no need to do the whole boat. Note: By the end of 2014, Royalex will be no longer available (the sole maker went out-of-business). Take good care of your Royalex canoe--it is sure to increase in value during the coming years!
SUNLIGHT AND MOISTURE
Ultraviolet light is a killer (aluminum canoes are the
exception), so store your boat in a weather-protected area out of the sun. If you use a garage, be wary of windows
that project a focused beam of light on to the hull. If you must store your boat in a light path, apply an
ultraviolet protectant to the hull or cover the sun-exposed areas with a cotton
sheet. Do not place black
plastic against the hull; It will
encourage condensation and cause the gel-coat to discolor.
Winterizing a canoe or kayak is mostly common sense: clean
out debris, wash and polish the hull, repair damage, apply an ultraviolet
protectant to plastics, oil or varnish the woodwork, tighten bolts and store
your treasure in a weather-protected, well-ventilated area, out of reach of
small animals. Get your boat ready
before the snow flies and you'll be ready to climb aboard when the rivers run
again.
XXX