CellFlo Portable Foam Porosity Meter

Foam porosity is important to flexible foam producers - and to their customers......

Low porosity foam results in furniture and bedding products with a "dead" feel and a slow recovery after compression. In extreme cases, it can result in foam blocks shrinking during cure.

If foam blocks are compressed to reduce volume during transport, the foam must be "open". If the foam porosity is too low, blocks will not recover to their full height.

Many foamers, particularly in the USA, use forced air cooling processes to accelerate the foam curing process. These processes require the foam block porosity to be carefully controlled to allow efficient flow of the cooling air.

Some flammability tests are very sensitive to the closed cell content of the foam. If foam is too open, a "fail" result may be obtained. Control of foam porosity is therefore very critical. (Note. Flammability tests do not necessarily indicate how safe a foam will be in a real fire situation.)

By testing foam porosity at the foam cut-off the foamer can avoid making closed or tight cell foam. This is very important as foam is very prone to shrinkage and splits once porosity drops below a safe level. Checking porosity at this point gives the opportunity to adjust tin catalyst level to restore the porosity to the correct level for healthy split free processing.

Do you test the porosity of your foam at the cut-off ?

DO NOT test foam porosity during production like this!

The foam at the cut-off is saturated with hot TDI vapour. If you blow into the cut foam face you will be exposed to high concentrations of TDI vapour. This is very, very dangerous to your health.

There is no need to risk your health - use our CellFlo Portable Porosity Meter. The CellFlo pocket-sized, battery operated foam porosity meter, gives the foam process technician an instant indication of the degree of foam porosity.


Switch on......hold against the foam.......take the reading!

CellFlo Portable Foam Porosity Meter gives a digital reading range of 0 - 100 which is directly related to foam porosity