PPI filtration foam

PPI filtration foam
An open-pore, flexible polyurethane foam on a polyether/polyester base.

Grades/types
PPI (pores per inch) indicates the number of cells in the foam per inch.

The standard range is 10-80 PPI.
PPI 10 has large cells and is completely open, while PPI 80 has small cells, is more dense, and has a lower air flow.

PPI filtration foam is also available on a polyester - or polyether basis.

PPI filtration foam on a polyester base should not be used in proximity to water or other humid surroundings, as there is otherwise a risk of decomposition.

However, PPI filtration foam on a polyether base is suitable for applications in humid environments or water filtering.

Applications
For filtering dust, water vapor, drifting snow etc., or as a filter and lining in loudspeakers.
Has limited durability in direct sunlight.

 Type PPI 10 PPI 15 PPI 20 PPI 45 PPI 60 PPI 80
Polymer
type
Polyester-based poly-urethane-foam  Polyester-based poly-urethane-foam  Polyeste-rbased poly-urethane-foam  Polyester-based poly-urethane-foam  Polyether-based poly-urethane-foam  Polyester-based poly-urethane-foam
Colour Black  Black  Black  Black  Black  Black
Tempe-
rature
-40 -
+100 °C
 -40 -
+100 °C
 -40 -
+100 °C
 -40 -
+100 °C
 -40 -
+100 °C
 -40 -
+100 °C

Product- and material overview

Product overviewMaterial overview
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