Canvas - Cotton canvas is usually the least expensive option, and provides
good all-around protection in mild climates. Cotton is a natural fiber that is
very breathable, but is not completely waterproof. Marine-grade 100% cotton, however,
is specially treated to provide excellent water repellency, as well as mildew
and rot resistance.
A canvas boat cover
is an economical choice for boaters who want a combination of strength and air
permeability. Seams and stress points are reinforced, and the fabric allows moisture
to evaporate, helping to prevent mildew damage inside the boat.
canvas is most often used for mooring and long-term storage, the addition of tie-down
strap system will make them suitable for highway towing. When faced with a choice
of weave, a duck canvas has a tighter weave, and is therefore more durable than
standard types. A good custom-fit boat cover, made of 100% canvas, will usually
have a 2-3 year warranty.
- Polyester is one of the strongest materials, providing the greatest outdoor
durability of almost any other boat cover fabric. Most premium custom-made boat
covers are made of 100% polyester.
covers are found in varying weights, usually between 6-10 ozs. And there are premium
covers that have a special coating of acrylic or urethane to add durability and
water proofing. Warranties range from 3 to 7 years.
only is polyester as strong and durable as fabrics twice its weight, it is extremely
water repellant. It is one of the most stain, rot, mildew, and UV resistant materials
available to provide boat protection. Plus, it will not shrink or stretch like
Polyester is not as breathable
as cotton, so it is best used in areas where humidity is not a concern. But its'
durability makes it an excellent option for long exposure to sun and rain. And
with outstanding tear strength and abrasion resistance, polyester makes the best
boat cover for towing.
Poly/Cotton Blends - The Polyester/Cotton
blend is an attempt to get the best features of both fabrics, by combining the
strength and water repellency of polyester with the low price and breathability
of canvas. A good balance is 50/50 or 605/40 polyester/cotton, but look for the
highest percentage of polyester.
the inclusion of more expensive polyester fabric, poly/cotton blends still make
very economical boat covers. Yet they still hold up well under highway towing.
So if you're looking for a compromise between budget and performance, poly/cotton
is your best bet. Warranties are typically 3 years.