| Poly-Seal Caps |
|Superior sealing action. |
Internal cone made of LDPE seals the container across the top and inside diameter of container neck.
| Polypropylene |
|Polypropylene is the most common choice because it is inexpensive and suitable for most applications. Polypropylene caps have a tendency to “back-off“ or loosen over time, particularly when the container is rolled or shaken for mixing. || |
| Teflon-Lined |
|Teflon liners offer the greatest chemical inertness and should be specified for the most critical applications. || |