Versaperm Vapour Permeability measurement


Equipment to check on water vapour – the scourge of paper, packaging and coatings

WVTR meter for paper & packaging
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Water vapour can be the scourge of paper, packaging and coatings. It can cause paper to curl and jam, ink to go off incorrectly and packaged products to deteriorate rapidly. Unfortunately, with conventional testing techniques, measuring takes several days.

Water vapour technology experts Versaperm have the answer. Their WVTR (Water Vapour Transmission) meter is fast reliable, versatile and accurate. It can be used to test the permeability of paper, films and foils and coatings as well as blister packs and an endless range of materials and containers.

The equipment was developed by Versaperm scientists to produce WVTR measurements that are accurate to around one part in a million – and often 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 extremely hard to measure foils, results can normally be turned around in a day. Sensitivities are in the range 0.05 – 3200gm/m2/day.

The meter can also provide measurements of the equilibrium relative humidity (ERH) of substances that might otherwise be decomposed by normal water content measuring techniques. Results are clearly shown on the equipment’s display and readings can also be output digitally or to a chart recorder.

As well as standard testing on products such as papers, films and coatings, Versaperm equipment can be used to test unusual or hard to measure objects such dry coatings, pharmaceutical packaging, small bottles, industrial objects, building materials, bottles, foils, laminates and once, even a pizza!


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,