PBT (polybutylene terephthalate) 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.
How does PBT compare to 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%.
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.
The chemically tapering process starts with extruded filaments that are cut to size. The filament then goes through our patented chemical process of tapering the tip of the filament.
What are the advantages of chemical tapering?
Chemical tapering allows for more control over the filament’s sharpness and length, making PSF filaments the highest quality tapered filaments.
Do you license your chemical tapering
Yes we do. We offer a patent license
or technology transfer so that you can manufacture
high quality filaments from your local plant.
We will help you set up your plant and then
train you on how to use the technology.
For more information, go to our Licensing
Does PSF offer any finished products?
Yes, we currently offer finished cosmetic
brushes, artist brushes and toothbrushes.