Our filter foams are pore-controlled polyester foam with a defined and uniform pore size. The number of pores is defined as PPI (Pores Per linear Inch).
The cell membranes are completely removed by an additional reticulation process, which gives an open pore structure which lends these foams to have excellent flow characteristics.
The porosity of our standard range of Filter Foams ranges from 10 – 80 PPI and photographs the most popular types are shown in our gallery.
We offer the following filter foams for the ceramics industry:
Please note that we can source both coarser and finer filter foams if required.
The standard specifications of the most popular types of filter foams are shown in the below table:
| Foam Type | R2 | R4 | R6 | R8 |
| Density (kg/cbm) | 34 | 33 | 33 | 33 |
| Compression Load Deflection (kPa) | 3.3 | 3.5 | 3.5 | 3.2 |
| Tensile Strength (kPa) | 140 | 160 | 190 | 280 |
| Elongation at Break (%) | 150 | 240 | 300 | 320 |
IMPORTANT: Please note that these specifications are correct as of November 2013, but can be altered at the manufacturer’s discretion subject to revised test results.
