Versaperm Vapour Permeability measurement



Moisture vapour permeability

For many modern textiles and fabrics one of the most important criteria to the way they perform is moisture. It affects most of their physical characteristics. The big surprise is that there is very little relationship between the way they react with water and the way they react to water vapour. What might be an almost total barrier to the one might be almost transparent to the other.

The solution is to measure it and find out! – with a detailed vapour permeability testing service from Versaperm – technology leaders in this complex field.

Versaperm’s service is based on its own advanced design of WVTR (Water Vapour Transmission) meter, which can quickly produce results that are accurate to better than one part per million. The meter is around 100 times faster, and more accurate than conventional gravimetric techniques.

It can be used on diverse range of materials under varied conditions yet it can produce accurate and reliable results to better than one part per million – sometimes in the parts per hundreds of million range. With some materials these results can be achieved in as little as 30 minutes, but even with
hard-to-measure impervious textiles, results can normally be turned around in a day.

Sensitivities are in the range 0.05 – 3200g/m2/day and, for the technically minded, WVTR meters can also be leased from the company on long term agreements.


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Please send any sales enquiries to Christopher Roberts, Versaperm Limited ,
10 Rawcliffe House, Howarth Road, Maidenhead, Berkshire, SL6 1AP, UK, tel: +44 1628 777668
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For further Press Information please contact Gerry Palmer @ the Palmer & Rose Partnership. Tel 01494 637499, fax 0871 9003898,