Finetech Rubber Septa & Sleeve Stopper
◆ Key Features:
Made of food-grade silicone material.
Stoppers fit tightly to prevent chemical leaks.
Exhibit very low gas transmission properties.
Made in Taiwan
Finetech Rubber Stopper has turnover flange molded to grip outside of container neck promoting a double seal in conjunction with annular serrations on hollow plug. Annular serrations depress themselves against the inside wall of the bottle neck, making each serration a suctions sealing point.
Finetech Rubber Stopper is ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal to protect contents of vessel or container from the atmosphere.