materials library / classes / acoustic and insulation cores
NEURODESIGN® · MATERIAL CLASS · ACOUSTIC AND INSULATION CORES
PET acoustic felt
Needle-punched polyester board, usually recycled, used as an exposed acoustic finish.
Decisive attributes
The attributes that most determine how this class behaves and how it is experienced. No values are shown, because a value belongs to a product and not to a class. Two products of the same material can differ from each other by more than the material differs from its neighbours.
Typical application
Baffles. Wall panels. Ceiling rafts.
Worth watching
Absorption figures for felt are highly sensitive to whether it was tested against a hard backing or over an air gap. The mounting condition is frequently absent from published data.
Evidence
No record in the research corpus tests human response to this material class. Its physical behaviour may be well understood and its properties may be entirely predictable from the attributes above. That is a different thing from evidence that a person responds to it, and this library does not convert one into the other. The absence is shown rather than filled.
Outcomes it could bear on
Outcomes whose material levers overlap this class. This is a structural relationship in the ontology, not a finding: it says the property is relevant to the outcome, not that this material produces it.