vinstar smart combines the simple standard wine aluminum closure with a gasket that ensures higher protection for the wine. it gives excellent airtightness, significantly better than current saranbased liners and yet the opening is smooth and easy. it is a universal closure &ndash suitable for both still and sparkling wines and is fully compatible with current wine bottles and capping equipment.  wineries can use vinstar smart for still and lightly sparkling wines without changing their equipment. it is suited for small and larger bottling operations.the originality of this product lies in the integral injectionmoulded polymer granulate liner.the overall technical advantage of this closure system is its pressure resistance, compared to other screw caps with a separate liner. the same liner is used for all products still and sparkling and on the technical side, the liner profile can be adapted to the bottle rim.in budget terms, moulded polymer liners are less costly than multilayer polymer film liners added later. screw caps with integral diecast liners offer equivalent levels of security and convenience to those with separate liners.