Our storage vials, also known as step vials or dram vials offer a great solution for storing solvents for extended periods of time. Our screw thread vials offer enough threads per inch to eliminate evaporaton with a solid top or lined cap.
We offer F217 septa, which is a polyolefin foam extruded between two layers of polyethylene, usually 0.050" thick. This allows a closure to be torqued with 20 lbs of foot pressure and once the pressure is "backed off" the foam will come back to almost 100% of its original shape - giving a good, repeated seal.