| by Duncan Geddes
Polyurethane (PU) foams are renowned for their superior resilience and versatility, the likes of which make them the ideal choice for use across the construction and automotive industries. This article aims to uncover even more about the physical properties of polyurethane foam and establish how these characteristics have helped to make this type of foam […]
| by Duncan Geddes
Airflow, cell size and density, are the main factors influencing the effectiveness of sound absorption in acoustic foams(aka sound deadening foams). Increasing the cell count (ie the number of cells per 25mm of length) of the foam improves the sound absorption at all frequencies. The acoustic absorptivity a specifies the ratio of un-reflected sound in […]
| by Duncan Geddes
Flexible polyurethane open-cell foam is manufactured in a wide range of densities. This is due to the huge number of different applications that foam is used within, ranging from washing up sponges and bath sponges, up to heavy-duty packaging and mattresses. Within Europe, the lowest density is 10kg/m3, which in reality is so light that […]
| by Duncan Geddes
The disposal of scrap foam is becoming an increasingly important subject for both manufacturers and converters of polyurethane foam. Foam is inherently a volumetric but light-weight material, so what methods are there to dispose of scrap foam? And is the foam recycling industry really equipped to handle the sheer volume of scrap that’s being produced? […]