Industrial process in which it joins adheres a sponge to a fabric (or two) in width. Said sponge (foam) can be of different chemical composition, density and thickness.
- Health sector: Orthopedics.
- Nautical sector: Upholstery and protections.
- Sports sector: Protections.
Foaming with flame: Technique that consists of the union of two fabrics by means of the incorporation between them of a polyurethane foam that, after being melted, attaches the glue of both.