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The article focuses on the detrimental effects of the environment on pneumatic tubing. To avoid recurring problems, it is important to know what can go wrong and why. This allows making the right material selection to avoid future problems. Many different types of tubing exist because, a material with good characteristics in one area generally has poor characteristics in others. Any selection of tubing, is a compromise between media resistance, performance, and price. The effect of chemically active substances most likely fits the general idea of media-related damage. A completely different type of damage mechanism occurs in the case of physically active media, where no chemical reaction takes place with the polymer material. These media develop their damaging effect by diffusion into a component and reduce the intermolecular forces within the polymer.