PSF’s PBT is a monofilament of PBT developed
as a replacement for natural hairs. It has
an appearance and feel quite similar to
natural hair. PBT offers many of the same
properties as Nylon, however, PBT absorbs
very little water; allowing PBT to hold
its stiffness in wet applications. PBT is
an economical substitute for Nylon 6.6 or
6.12 in many applications, and has better
abrasion resistance than polypropylene or
polystyrene. PBT also has excellent bend
recovery, excellent solvent resistance and
excellent oxidation resistance at high temperatures.
PBT has very good resistance to sunlight.
The properties of PBT do not change much
between wet and dry applications because
of its ability to not absorb much water.
Excellent bend recovery
Excellent stiffness (wet or dry)
Does not absorb water
Excellent solvent resistance
Excellent heat resistance
Excellent oxidation resistance
Good abrasion resistance
PBT vs. Nylon
When compared with Nylon, PBT is noted
for its durability, softness and elasticity.
A major difference between Nylon and PBT
is the ability to maintain stiffness. PBT
absorbs much less water than Nylon, allowing
it to maintain optimal stiffness during
wet and dry conditions. When saturated in
water for 24 hours, Nylon 6.12 has an absorption
rate of 3.00% and PBT absorbs about 0.20%.
PBT has a 94% bend recovery while Nylon
has a 90% bend recovery. These facts make
PSF’s more effective and longer lasting
Another major advantage to PBT over Nylon
is its chemical resistance properties. PBT
rates higher in resistance to the following
major chemical categories: Mineral Acids,
Organic acids, Oxidizing agents, Organic
solvents, and Petroleum.
All PSF filaments are packaged safely
and securely, so your order will arrive
with no surprises. The filaments are packaged
suitable for automation.