Versaperm Vapour Permeability measurement



- do they pass the test?

The technical requirements for paper coating have mushroomed in recent years – “paper coatings” now gets over 1,000,000 hits on Google! Yet with virtually all of these, the single most important characteristic is the seemingly simple one of water vapour permeability.

Versaperm Limited is a world technology leader, produces a WVTR (Water Vapour Transmission) meter, which provides a quick and simple way to test this all-important vapour permeability and transmission rate. It can cope with several samples at a time and can give a reading in as little as 30 minutes – whereas the conventional gravimetric measurement technique takes several days and is significantly less accurate.

The WVTR meter is easy to use and gives a series of digital readouts that can be recorded or simply read off the LCD screen. It needs no re-calibration and requires, at most, minimal training to give results that are accurate to better than a few parts per million (with some samples a few parts per hundred million). Sensitivities are in the range 0.05 – 3200g/m2/day.

A wide range of variations is available, depending on the specific application, but both single and multi-sample systems and a variety of chambers are available for testing samples the size of a thimble up to a pallet load and beyond. A permeability measurement laboratory service is also available from Versaperm.


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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,