Speaker / Filter Foam (30 PPI)
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Speaker / Filter Foam (30 PPI)

SFF

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Features

Our high-capacity foam filters dust, allergens and other debris from central heating and air conditioning systems while maintaining airflow around the captured particles. It is also used as speaker foam due to the high air-flow its structure allows. This foam is dark charcoal in color.

30 PPI (Pores Per Inch)

NOTE: Not tested for use in aquariums.

Custom Cutting is Available!
We can cut custom sizes of speaker/filter foam for any project you may have! Please Contact Us for details.

Details
Characteristics
A reticulated, open-pore, flexible, ether-type of polyurethane foam. Speaker foam is characterized by a skeletal structure of strands which provide a constant 97 percent void space and a very high degree of permeability.

Applications

Filters: Small engines, air compressors, hair dryers, face masks, vacuum cleaners, air conditioning, school and motel ventilators, oil-mist eliminators, automotive air cleaners, industrial panels, electric equipment, projector equipment and dust bag collectors
Coalescing: Separation of water from gasoline, perchlorethylene and jet fuel
Noise Suppression: Microwave covers, aircraft, industrial vacuum cleaners and high intensity sounds
Miscellaneous: Powder puffs, floor scrubbing pads, filters in hydraulic lines, lint-free wipers, pre-filter for liquid filter, paint brush applicators, blackboard erasers and foundation for ceramic and metallized high-tech filters
Resources

Physical Data Sheet: Speaker / Filter Foam (30 PPI)

Notes

Manufacturing Tolerances
Products may carry a size tolerance depending on the style and job. Please see our Tolerance Table.

Standard Sheet Sizes/Quality
Standard sheets of foam are cut slightly larger than the listed size to compensate for shrinkage during packaging, transit, and delivery. Sheets may contain rough edges. Any yellowing/discoloration present is a byproduct of exposure to light during production and manufacturing and does not represent a flaw, damage, or defect in the material.

Reviews
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1/4" Speaker foam
Blake | September 26th, 2021
Used on front of diy speakers to eliminate diffraction. A bit difficult to cut but placing on a flat surface with a metal straight edge on top and cut with a razor knife works. Just make certain it doesn't slip. Couldn't ask for better, works perfectly! Five stars!
3/4" acoustic sound foam
keith marengo | December 19th, 2019
Purchased sheet of acoustic foam to replace deteriorating foam panels on my JBL L-100s. The cost to have them cut the foam for me was too high so I did it myself. I was worried about jagged edges but used a new sharp razor knife and a metal ruler. This allowed me to compress the foam and make very accurate and clean straight cuts. Great foam for speaker grills! THank you.
Worked great!
Jason Hubble | December 18th, 2019
Replaced old deteriorating foam in Nutone house speakers. Cut with razor blade and glued in with gorilla glue. They look awesome. Thanks for making it easy
Perfect
KEITH R KLUENDER | December 18th, 2019
Used to replace worn 3 x 72 speaker foam on Carver vintage. After a day to decompress, per instruction, worked great.
Worked out well
BOB HAUCK | November 20th, 2019
everything looked good,