Most samples, packaging and coatings are supplied as flat
samples, which can be quickly and easily measured with minimal
sample preparation. For many food, pharmaceutical, and other applications, however, the testing of complete containers provides a greater certainty that the total packaging solution
Some samples are neither flat nor closed containers,
but we have solutions for measuring
permeability on these too, often these include special testing rigs.
Our testing service is fast, efficient and, above all accurate. Before sending samples, please call us to discuss
your application. We can usually provide an immediate quotation over the telephone, by email or by post . Sometimes we will need to look at
the sample to make an assessment of the most appropriate technique.
Some of the many sample types we can test in our permeability testing laboratory
Permeability is a measure of the rate at which a vapour (often water vapour, but we can test against virtually any gas) can flow through a material. Different techniques can give widely varying results so it is crucial that any testing facility fully understands the science and the specific application.
Vapour permeability sensors
We are currently unable to use radioactive or highly
toxic gases. However, please call to discuss your application.
Vapour permeability is the critical characteristic in many applications as it affects not just the flow and distribution of vapour, but also the material or components physical characteristics - including strength, handling, printinability and durability.
Most foods and pharmaceuticals require packaging that controls the flow of vapour (i.e. permeability) to achieve a desired quality, safety and shelf life. In clothing it determines breathability and greatly affects the comfort of the wearer, especially during outdoor activity. The building, automotive, aerospace, marine and electronics, amongst many others, all demand accurate the use of materials with precisely controlled vapour permeability.