Cap liner

Sure-2-Vent is a patented breathable lining that compensates for pressure inside the container by venting horizontally and exhausting gas through the cap threads. Horizontal linings are suitable for household chemicals and health, beauty and other product containers that require pressure compensation. The lining consists of three layers: a foamed plastic substrate, an intermediate layer made of a porous material (the layer is not broken under pressure, unchanged) and an outer layer made of expanded polytetrafluoroethylene, used to contact with the liquid and provide protection against Leaking seal function. The middle layer is used for ventilation, even with a large torque closure.