NDI Filter Foam products offer exceptional application versatility. Environmentally
friendly and cost-effective, they feature controlled pore size-from 4 to 110 pores per inch
(PPI) and great tensile strength. These high-quality reticulated filter foam products are available in both Ether and Ester based Polyols and are easily fabricated to meet any number of
customer specifications.
Filter Foams from NDI are fabricated to demanding expectations and are handled and controlled
by fully trained and qualified personnel. Our Quality Assurance System, complies with ISO
9000:2000 and all of our products are fully traceable using a computerized lot control system.
These products are often certified to meet specific flammability specifications, military
packaging, and private company specifications. If you don’t have NDI products, then you don’t
have NDI quality.
The Thermal Reticulation process begins with Conventional polyurethane foam that is cured
and then placed in a special chamber. The chamber’s atmosphere is removed and replaced with
a mixture of hydrogen and oxygen then it is ignited. Once ignited, a controlled ignition vaporizes the foam’s high surface area and Low Mass membranes across the cell faces, leaving only a skeletal stand structure or pentagonal dodecahedron (a geometric shape with 12 plane faces).
This is the natural structure of reticulated foam cells. Thermal Reticulation improves the
physical properties and characteristics of the foam. The resulting reticulated filter foam is
stronger and is completely permeable to fluids, sound and other medium. Most filter foams have a 97% void volume and have a greater capacity to filter out materials from various media.
