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Poro-Tex expanded PTFE
(ePTFE) provides a unique combination of porosity, chemical
and heat resistance for filtration and venting applications.
DeWAL produces ePTFE for specialized uses, such as blood
filters, gas sensor membranes and other applications, which
require submicron pore sizes.
Pore
size is selected according to the flow rate desired in the
material application. Whereas most ePTFE is supplied with
a pore size in the range if 5.0 to 0.1 microns, our manufacturing
capabilities allow us to fabricate Poro-Tex with pore sizes
down to 0.05 microns.
Poro-Tex
ePTFE membranes are naturally water repellent (hydrophobic),
which makes them an ideal liner for outerwear garments.
Poro-Tex repels ruin and snow, yet water vapor from the
body con permeate through the membrane Through special treatment,
we con render Poro-Tex water absorbent (hydrophilic), creating
an excellent wicking material ideal for certain medical
industrial and chemical applications.
Similarly,
Poro-Tex can be altered from its conventional oil absorbent
(oleophilic) state into an oleophobic material. It then
becomes an effective barrier for organic solutions.
All
grades of Poro-Tex hove outstanding thermal and chemical
resistance. With a continuous use temperature of 500ºF,
Poro-Tex is well suited for harsh bio- logical industrial
and chemical applications. Poro-Tex is chemically inert
and con be used safely in a wide range of biological end
industrial applications.
Using
state-of-the-art technology, DeWAL offers films with uniform
pore
sizes combined with superior performance and quality.
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