Felt with foam pieces
Normally composed of textile fibres, to which foam flakes are added.
Whatever the origin of the fibres may be, they can be piled with a thermosetting resin or thermoplastic fibres.
The resins may be phenolic or non-phenolic and thermoplastic fibres. The resins may also contain neutral or expandable fireproofing agents.
This kind of felt is used for soundproofing and it can be manufactured in fully shaped adhesive pieces (on one or both sides), with vlieseline (on one or both sides), and die-cast.
Thanks to its thermoplastic fibres, these pieces can be finished in hot or cold moulding processes.