Aging & photostability testing

Aging test is a broad term used to describe different ways of simulating excessive ambient conditions exposure for a product or material under laboratory controlled, yet accelerated conditions. Aging tests can focus on various environmental factors (temperature, humidity, radiation). Heat aging is one of the simplest tests required in several industry segments. This type of testing is based on the assumption (called the Arrhenius law) that every chemical reaction doubles its rate with every 10˚C increments. Another test is based on exposition to UV light to simulate accelerated sun exposure. The results of this kind of studies deliver the knowledge on a service life of a product.

Essentially, most of what we do answers one of the following questions:

  • What will happen to your product/material for a long period of time?
  • How resistant is your product/material?

When doing this type of testing it is important to have a good understanding of the product characteristics, the normal use conditions and what is the product’s life expectancy. When the aging process has been completed, physical/mechanical measurements need to be made on the samples to assess whether product properties were modified.