immagino che il settore sia quello della plastica

qui una definizione con foto eloquente
Paneling occurs when the pressure inside a plastic bottle becomes less than the ambient air pressure outside, causing the walls of the bottle to partially collapse inward. The result is an aesthetically unappealing product package with a distorted shape and badly puckered or wrinkled labels.
http://www.oberk.com/packaging-crash-course/plastic-bottle-p...

ancora

Paneling is the deterioration and collapse of the walls on a plastic bottle or jar. It will normally occur when a plastic bottle has been stored with specific contents for a long period of time. This distortion is cause by a reduction in pressure inside the bottle. Paneling occurs with plastics that are flexible such as LDPE.

in IT si parla genericamente di cedimenti e deformazioni

oppure: cedimenti e/o deformazioni