Filter Fabric Selection Guide

With many filtration media options available, it is imperative to choose the correct filter fabric that will cover all the variables for any particular application.  There are multiple options for filter materials and we can assist in finding the longest lasting and most suitable fabric.  The graph below is a quick guide to help you make the choice. 

  Polypropylene Polyester Acrylic Fiberglass Nomex Ryton P84 Teflon
Max. Continuous Operation Temperature

170 °F

(77 °C)

275 °F

(135 °C)

265 °F

(130 °C)

500 °F

(260 °C)

400 °F

(204 °C)

375 °F

(190 °C)

500 °F

(260 °C)

500 °F

(260 °C)

Abrasion Excellent Excellent Good Fair Excellent Good Fair Good
Energy Absorption Good Excellent Good Fair* Good Good Good* Good
Filtration Properties Good Excellent Good Fair Excellent Excellent Excellent Fair
Moist Heat Excellent Poor Excellent Excellent Good Good Good Excellent
Alkalines Excellent Fair Fair Fair Good Excellent Fair Excellent
Mineral Acids Excellent Fair Good Poor** Fair Excellent Good Excellent
Oxygen (15%+) Excellent Excellent Excellent Excellent Excellent Poor Excellent Excellent
Relative Cost $ $ $$ $$$ $$$$ $$$$$$ $$$$$$ $$$$$$$


Non-Fiberglass Finish Purpose Available For
Singed Recommended for improved cake release Polyester, Polypropylene, Acrylic, Nomex®, Procon, Ryton®, P84 (felts)
Glaze / Eggshell Provides short-term improvements for cake release (may impede airflow) Polyester, Polypropylene (felts)
Silicone Aids initial dustcake development and provides limited water repellency Polyester (felt and woven)
Flame Retardant Retards combustibility (not flame-proof) Polyester, Polypropylene (felt and woven)
Acrylic Coatings (Latex base) Improved filtration efficiency and cake release (may impede flow in certain applications) Polyseter and Acrylic Felts
PTFE Penetrating Finishes Improved water and oil repellency; limited cake release Nomex® (felt)
PTFE Membrane For capture of fine particulate, improved filtration efficiency, cake release and airflow capacity Nomex®, Polyester, Acrylic, Polypropylene (felt and woven), P84, Procon, Ryton®


Fiberglass Finish Purpose Applications
Silicone, Graphite, Teflon Protects glass yarns from abrasion, adds lubricity For non-acidic conditions, primarily for cement and metal foundry applications
Acid Resistant Shields glass yarn from acid attack Coal-fired boilers, carbon black, incinerators, cement, Industrial and boiler applications
Teflon B Provides enhanced fiber to fiber resistance and limited chemical release Industrial and utility base load boilers under mild pH conditions
PTFE Membrane For capture of fine particulate improved filtration efficiency, cake release, and airflow capacity Cement/lime kilns, incinerators, coal-fired boilers, cupola, ferro silica/alloy, furnace


The information presented above is provided for general guideline purposes. Varying sets of conditions may affect performances. Other specialty finishes are also available.