Product General and Technical Information
Date: 12/10/2014
Name: Speaker / Filter Foam 20 PPI
General Information
Filter foam is a good-quality foam with a medium/firm feel. Filter foam has a high dust collection rate, while still providing high air flow. Common applications include speaker covers, filters and cleaning. Typical life is 5 to 10 years.

Property Test Method Values
Density (LB/Cubic Ft.) ASTM 3574-91 1.8
25% Compression Force Deflection (CFD) ASTM 3574-91 30
Cell Count (Pores Per Inch) ASTM 3574-91 20
Air Flow (CFM) ASTM 3574-91 21.0
Tensile (PSI) Min. ASTM 3574-91 20
Elongation (%) Min. ASTM 3574-91 180
Tear (PSI) Min. ASTM 3574-91 5.0
Compression Set
(@ 50% Deflection) % Max.
ASTM 3574-91 15
25% CLD Autoclave Loss (% Max.) ASTM 3574-91 25
Compression Set
(@ 50% Deflection Autoclave Loss) % Max.
ASTM 3574-91 10
Tensile Strength Dry Heat Loss (% Max.) ASTM 3574-91 20
Fire Retardant Classification ASTM 3574-91 Non Fire Retardant
Contains Fire Retardant Additives - - - No

All values reported are typical values. We cannot guarantee the applicability or the accuracy of this information or the suitability of the product for any particular purpose. This product is sold without warranty, expressed or implied. (Unless stated otherwise.) Buyer assumes all responsibility for loss or damage arising from the handling and use of this product, whether done in accordance with directions or not. Statements concerning the possible use of this product are not intended as recommendation to use this product in the infringement of any patent.

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