FIBERGLASS COVERING / BUILDING FABRICS
Fiberglass fabrics have been developed for many marine, industrial and
household purposes. There are different types of fabrics and each type
has special characteristics suited to fill a specific need, as described
below. Our line of Marine Fiberglass Fabrics are superior strength
fabrics woven from pure glass fiber and treated with special finish
processes. These finish processes are very important in that they allow
the resin to wet out the fabric properly.
Beware of so-called industrial or bargain fabrics as they can be
difficult to wet out and can lead to delamination. Whether you use our
Marine Fiberglass Fabrics for covering or strengthening, they have
outstanding tensile, structural and impact strength. We recommend them
for boat hulls, cabin decks, auto customizing as well as any application
where strength and durability is required.
- Weight 3.2 oz., 6 oz. or 7 oz. per sq. yd.
Our woven fiberglass cloth is treated with a chemical coupling agent
which significantly improves the peel strength and adhesion over
ordinary cloth when using Epoxy-Plus resin. It works equally well with
polyester resin. We recommend using one layer of our 7 oz. cloth for
the hull, sides, bottom and transom for boats from 8 to 18 ft. We
recommend two layers on larger boats or where additional structural
strength is required. 6 oz. cloth is used for cedar strip canoes, 3.2
oz. is used for decks.
FIBERGLASS CLOTH TAPE
- weight 9 oz. per sq. yd.
Fiberglass tape is woven fiberglass cloth, in narrow widths, with
specially woven and bonded edges to prevent fraying. It is widely used
in "stitch & glue" construction, in any area that needs reinforcement,
for covering seams, or bonding edges. The tape is woven with the warp
and fill yarns running parallel and at 90 degrees to the length of the
tape. The tape is specially treated for use with epoxy resins, but
works equally well with polyester resins.
FIBERGLASS CLOTH TAPE - BIAXIAL
- Weight 12 oz. per sq. yd.
Biaxial fiberglass tape is a non-woven, double bias fiberglass cloth, in
narrow widths, where the opposing layers of fibers run diagonally at 45
degrees to the length of the tape. Significantly stronger than standard
fiberglass tape due to the tape weight (12 oz. vs 9 oz.) and the
orientation of the fibers. Specified in some "stitch & glue" designs
for heavy duty reinforcing. Coarser texture requires additional fairing
for a smooth surface. Treated for use with epoxy or polyester resins.
- Weight 1-1/2 oz. per sq. ft.
This specially treated material, for use with polyester resin only, is a
non-woven felt consisting of chopped glass fibers 1" to 2" in length,
crisscrossed and randomly interlocked, held loosely together with a
binder. Since it is not woven, it can be stretched to fit into
difficult areas. It is highly absorbent, soaks up a great deal of
resin, and the resultant structure is stiffer than a layer of cloth,
although not as strong. Mat is often used between layers of roving, or
as a waterproof layer when there is no gelcoat. Typically used with
polyester resin which dissolves the binder, not recommended for use with
FIBERGLASS WOVEN ROVING
- Weight 18 oz. per sq. yd.
Woven roving is a high strength, more coarsely woven fabric widely used
in all phases of fiberglass molding. This 18 oz. treated roving has
replaced all other lightweight grades where speed of wet-out,
drapability and flatness of weave are important. Typically used with
polyester resin but can be used with marine epoxy.