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Camera has been sealed airtight utilizing a thermoplastic polyurethane as not to expose any gas to the inside of the camera or battery case. This process is done over every battery change.

Thermoplastic polyurethane ( TPU ) is any of a class of polyurethane plastics with many useful properties, including elasticity , transparency , and resistance to oil, grease and abrasion. Technically, they are thermoplastic elastomers consisting of linear segmented block copolymers composed of hard and soft segments.