#2 Silicone Bung / Stopper
Our #2 Silicone Stoppers provide an ultra-precise seal for openings ranging from 15.9mm (bottom) to 19mm (top). Crafted in the USA from 100% food-grade silicone, these stoppers are 100% non-porous and odorless. They are the ideal choice for sealing delicate laboratory vials or small-batch botanical extracts, ensuring that your samples remain pure and free from environmental contaminants.
Multiple Tooling Options: Choose from a Solid stopper for hermetic storage, a Bored version (with a 15/64" hole) for small-scale pressure relief, or the Grab Ring for effortless removal from narrow-necked vessels.
Extreme Chemical Stability: Resistant to acids, bases, and common laboratory solvents; it will not crack, chafe, or harbor biological growth over time.
High-Temperature Tolerance: Safe for use in autoclaves and high-heat distillation setups, maintaining its flexibility and seal integrity up to 400°F.
BPA & Phthalate Free: 100% food-grade and medical-grade silicone, ensuring total safety for sensitive food, beverage, and scientific applications.
Grab
| TOP |
BOTTOM |
HEIGHT
|
| 19 mm |
15.9 mm |
31.75 mm |
| 3/4" |
5/8" |
1 1/4" |
Solid / Hole
| TOP |
BOTTOM |
HEIGHT
|
| 19 mm |
15.9 mm |
25.4 mm |
| 3/4" |
5/8"
|
1" |
Hole Diameter = 15/64" (5.95 mm)
