Product Description
A worn liner can turn a good screw cap into a leaky one. These replacement liners restore a tight, chemically resistant seal so existing PBT and tamper-evident caps can stay in service longer. Swapping in a fresh liner is quicker and more economical than replacing the whole closure.
This listing is for DURAN catalog number 292481107: Replacement Cap Liner, GL 18, PTFE coated silicone, Pack of 10. Each liner is cut from peroxide-cured silicone and coated with PTFE on the side that faces the bottle contents. The silicone gives compression for a dependable seal while the PTFE layer resists chemical attack. Liners are offered for GL 14, GL 18, GL 25, GL 32 and GL 45 caps, are autoclavable and come in packs of 10. Add it to your LIGHT LABS order alongside the rest of your glassware and closures.
Key Features
- PTFE coating – Gives the liner excellent chemical resistance.
- Tight seal – Silicone compresses against the bottle rim to prevent leaks.
- Cap compatibility – Fits PBT screw caps and tamper-evident screw caps.
- Full size range – Available for GL 14 through GL 45 threads.
- Autoclavable – Withstands steam sterilization.
Specifications
| Catalog Number | 292481107 |
| Brand | DURAN (DWK Life Sciences) |
| Description | Replacement Cap Liner, GL 18, PTFE coated silicone |
| Sold As | Pack of 10 |
| Material | PTFE-coated, peroxide-cured silicone |
| Thread | GL 14; GL 18; GL 25; GL 32; GL 45 |
| Diameter | 13; 16.8; 23.5; 30.5; 43.1 mm |
| Compatible caps | PBT screw caps; tamper-evident screw caps |
| Autoclavable | Yes |
Available Options
- 292480805 – Replacement Cap Liner, GL 14, PTFE coated silicone, Pack of 10
- 292481304 – Replacement Cap Liner, GL 25, PTFE coated silicone, Pack of 10
- 292481904 – Replacement Cap Liner, GL 32, PTFE coated silicone, Pack of 10
- 292482806 – Replacement Cap Liner, GL 45, PTFE coated silicone, Pack of 10
Applications
- Refurbishing PBT screw caps
- Solvent and reagent bottle sealing
- Tamper-evident cap maintenance
- Autoclaved media bottles
