Polymer Filtration

Mott’s polymer grade textile filters are primarily manufactured in the form of cups, threaded cups, discs and extended area packs. These filters are used in the manufacture of nylon where high pressures require a filter media with good shear and a controlled, consistent filtration capability. Sintered metal filters provide a very stable pore structure, excellent gel removal properties, can be professionally cleaned and are available in a wide variety of polymer grades.

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Literature & Data Sheets

Typical Applications

  • Polymer Filtration -Nylon 6, Polyester, Polypropylene

Textile Filters for Polymer Melt Spin Pack Filtration

Mott polymer grade filter cups and extended area packs for continuous filtration performance

Porous Metal Overview

Check out the features and benefits of Mott sintered porous metal media that delivers uniform porosity for superb filtration efficiency and structural integrity.

Product Specs


Threaded Cups:
– 1.5″ – 2.0”

Standard Diameters (OD) 0.317”, 0.380” – (ID) 0.093”, 0.156”

Thread Size – 5/16-18, 3/8-16 (Dependent on media grade)

Other options are available, consult factory

Discs: Consult Factory

Extended Areas Packs: Consult Factory

Material Choices

Standard filter and hardware alloys – 316L SS

Polymer Media Grades

Polymer Grades – 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Nominal pore sizes
– 10, 12, 15, 20, 30, 40, 55, 60, 80, 100


Mott threaded cups may be cleaned and reused many times with minimum effect on porosity

Our Design Capabilities

Application Engineering – Need consultation on your design? Our team of application engineers are ready to help you determine the right textile filters for your design. With decades of experience working with the world’s largest technical and performance brands, we’re eager to solve complex problems with you.

Customer Innovation Center – We enjoy working with customers on complex projects. In fact, we’ve dedicated an entire facility to it. Want to join us for various lab testing and engineering consultation sessions? Join us at our Customer Innovation Center in Connecticut to develop a solution for your unique application.

Rapid Prototyping Cell – Trying to determine the feasibility of your design as fast as possible? Use our rapid prototyping cell to turn around prototypes in as little as 2 weeks. Our engineers will work with equipment similar to our manufacturing facility to provide you with a manufacturable, economical design.

Additive Manufacturing – If you’re looking for the most uniform porosity or a non-traditional design, look no further than working with out porous 3D printing team. We can create controlled porosity designs with various density gradients in non-traditional shapes to satisfy the most unique design request. Our technology allows us to print parts with both solid and porous in a single print cycle.

Relevant Services

Lab Testing – If you need data packages or feasibility testing for your part prior to installation, we’re happy to work with you. We’ll use our lab center to perform various characterization and performance tests to ensure your parts are meeting strict specifications.

Computational Fluid Dynamics – If you would like to model your process fluids interaction with a Mott part, ask your Mott representative how we can use CFD software.

Engineering Memberships – If you’re constantly working on complex designs that require the highest standards of engineering support, ask about our membership rates, which will allow you discounted rates to various lab testing, prototyping, and engineering resources.