Versaperm Vapour Permeability measurement
Vapour permeability table

Vapour Permeability

Vapour Permeability testing using our latest permeability testing equipment is fast, easy, accurate and repeatable. Versaperm MKVI Vapour permeability testing instruments are based on a modular approach which is designed to ease customisation. Thus each Vapour permeability testingi instrument is built with a variety of options to suit the customer and their particular application. This is achieved at prices which are competitive with mass-produced instruments.

Vapour permeability is the measure of how strongly a material can resist the barrier passage of any gas (such as water vapour, Oxygen, CO2 or a hydrocarbon).  Vapour permeability dramatically affects the physical characteristics of most products and materials, from outdoor clothing to missiles and from pizza to industrial seals.

Different gases have varying permeability for the same material.
Generally speaking nitrogen oxide has the lowest vapour permeability and that the vapour permeability of oxygen is 25 times greater.  The vapour permeability for carbon dioxide is 10 to 25 times greater than for nitrogen oxide.

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Vapour permeability measurement