Vapour permeability measurements

This can be critical as many industrial manufacturing processes, such as thermoforming, can actually change vapour permeability by a factor of four.

Versaperm says every valve, seal, mastic and enclosure lets some water through - as water vapour has the ability to permeate through every single material.  Many materials and sealants are great at keeping out liquid water but allow water (and other) vapours to pass through virtually unhindered. Cellulose, EVOH and PVOH are examples of this. 

This problem can cause equipment to jam or fail, electronics to malfunction, drugs to loose potency and food to go stale. It has even caused missiles to crash. Versaperm's range of vapour permeability measurement equipment can be used for both product development and quality control.

This can be critical as many industrial manufacturing processes, such as thermoforming, can actually change vapour permeability by a factor of four.

The equipment can cater for several samples, mastics, enclosures, seals, gaskets or components at a time, often give a reading in as little as 30min. It can optionally control environmental condition such as pressure and temperature and can produce results not just for water vapour but for hydrocarbons, solvents, hydrogen, oxygen, CO2, helium, and so on.

Versaperm’s control interfaces are simple and intuitive and provide results that can be recorded, output directly to pass-fail systems, QC or other software systems.  Results are accurate in the PPM to PPB range.

As well as manufacturing the instruments, Versaperm offers a vapour laboratory measurement service and technical consultancy.