Product Description
Protect valuable samples during long-term storage with a closure whose PTFE liner face stands up to nearly any chemical at room temperature. The foam backing behind the PTFE adds resilience, so the seal stays tight on the vial lip, and the white top is ready for sample marking.
This listing is for Kimble catalog number 74526-22400: White Urea Closure, 22-400, Case of 500. The cap is molded from rigid white urea and fitted with a foam-backed F-217 liner faced with PTFE. The 22-400 thread suits standard scintillation vials. The PTFE face keeps sample contact limited to an inert surface, while the foam layer compensates for small variations in the vial finish. Closures are not autoclavable and are packed 500 per case. LIGHT LABS supplies the complete DWK Life Sciences line, including Kimble, Wheaton and DURAN labware.
Key Features
- PTFE-faced liner – Inert face resists attack from virtually all chemicals at room temperature.
- Foam-backed seal – F-217 foam backing provides resilience for a tight seal.
- Long-term storage – Well suited to holding samples over extended periods.
- Rigid urea cap – White urea body with a markable top.
- 22-400 thread – Fits standard scintillation vials.
Specifications
| Catalog Number | 74526-22400 |
| Brand | Kimble (DWK Life Sciences) |
| Description | White Urea Closure, 22-400 |
| Sold As | Case of 500 |
| Cap material | Urea |
| Liner | Foam-backed F-217 with PTFE face |
| Color | White |
| Thread finish | 22-400 |
| Autoclavable | No |
Applications
- Long-term sample storage
- Liquid scintillation counting
- Aggressive solvent samples
- Radiochemistry archives
