The Impact properties of the polymeric materials are directly related to the Overall toughness of the materials.

Toughness is defines as the ability of the polymer to absorb applied energy. Generally plastic films are being used for Packing purpose, which happen to undergo wear & tear. Hence strength of Impact Resistance is established to evaluate the quality and to get the impact load film can withstand. This method covers the determinates of the energy that cause, plastics film to fail under specific conditions of the impact of the free falling dart.

The energy is expressed in terms of weight of mass feeling from specified height, which would result in 50% specimen’s failure tested.