Fiberglass Tapes are sorted as Stitched Biaxial Tapes, Standard Woven Fiberglass Tapes, and Stitched Triaxial Tapes.
Please note that only fiberglass is listed here and that kevlar and carbon are listed in their own sections. These tapes have no adhesive backing and according to their description can have a a clean selvage edge or can be sliced from a wider roll. We have a commercial slicing machine and in certain cases, if not listed here, we can slice wide rolls of cloth into narrower widths. Example : A 50" wide to your specification can be sliced into two 25" rolls and one of the 25" can be sliced into narrower widths. In most cases you have to take the entire 50" as we don't want to be stuck with non standard sizes. Call to discuss.
Stitched Non-Woven Biaxial and Triaxial
The axial fabrics listed below are different than woven
fabrics in that the yarn layers are layed flat on top of each
other and lightly stitched together. Woven fabrics have
the strands of glass going over and under like a
normal piece of cloth.
The axials are generally stronger and stiffer than woven
products for any given weight and usually offer the best
value. They are compatible for both polyester and epoxy
resins unless stated differently.
Most biaxials are listed as having a layer of chopped strand mat on them or no layer of mat. Mat will give a smooth surface to one side. Example 17 oz. x 50" wide has no mat and simply weights 17 oz. per sq. yard. The same material with a thin layer of 8 oz. of mat would be called 1708 for a total weight of 25 oz. per sq. yard.
DESCRIPTION OF AXIALS
Biaxial is 2 layers, Triaxial is 3 and Quadaxial is 4. The different layers will run in different directions according to a certain specification. 0 degrees means one layer is running
longitudinal (length wise or warp direction). +45 and -45 means that there are 2 layers running off 45 degrees on each side of the
warp direction. 90 degrees means that there is a layer running at 90 degrees (horizontal, weft or fill direction) to the warp
Here are some examples: +45 degrees and -45 degrees biaxial is a common biaxial
looking like this in the warp a ...x... in the warp
direction. 0 degrees and 90 degrees would be like a cross hair (+) if viewed in the warp direction.
+45 degrees, 0 degrees and -45 degrees would be a triaxial like the previous biaxial except the third layer is running 0 degrees or 100 % in the length
direction. Triaxials can also have the third layer running in the weft or 90 degree
A quadaxial would have 4 layers -45, + 45, 0 and 90 degrees. Quadaxials are selected for the greatest stiffness and nearly equal strength in all directions.
DESCRIPTION OF MAT TERMS
Some axials come with a layer of chopped mat. This is an extra layer that is either stitched or stuck on to one face. Mat terminology can be confusing because it can be specified in ounces per sq. foot or ounces per sq. yard.
Example: 1708 is a very common biaxial. 17 is the weight in ounces of the 2 layers of glass and the 08
means a third layer of mat at 8 ounces per sq. yard to give you a total weight of 25
ounces per sq. yard.
1710 would have 10 ounces of mat and 1715 would have 15 ounces. Note that many manufacturers round off the weights and 1708 may be the same as 1808 and the
08 may be closer to 7 ounces.
(Stitched Axial Type) Description Price Per Lineal Yard Please specify the tape
weight when ordering.
Tight weave (T)
sliced from a wide roll
(no selvage edge) 6" wide. 2/3 of the yarn
and strength is in the
direction where you
need it most. This
tape is very smooth
and thin and is
stronger than normal
6 oz. in the weft
for draping around
sharp corners but
more care must be
taken to wet out.
Sliced from a wide
roll. Will have
loose, no hard,