Product Description
Solvent work demands a septum that reseals reliably without leaching contaminants into the sample. This PTFE-faced septum fits GL 45 bottles and keeps a liquid-tight seal through repeated needle punctures. It is well suited to solvent reservoirs and other bottles that are sampled often.
This listing is for DURAN catalog number 292483005: PTFE-coated Silicone Septum Seal Platinum cured silicone, GL 45, Case of 10. The septum pairs soft, high-purity platinum-cured silicone with a PTFE film that protects it from solvent attack. Used with the red PBT GL 45 open-top screw cap, it fits GL 45 bottles from 100 to 20,000 mL. It handles minus 50 C to 180 C, autoclaves at 121 C for 15 minutes and is 3 mm thick. Sold in packs of 10. Add it to your LIGHT LABS order alongside the rest of your glassware and closures.
Key Features
- Easy needle entry – Soft silicone allows penetration and reseals after piercing.
- Low contamination – High-purity platinum-cured silicone reduces solvent contamination risk.
- PTFE barrier – Resistant PTFE film shields the silicone from solvents.
- Wide temperature range – Usable from minus 50 C up to 180 C.
- Sterilizable – Autoclave at 121 C or dry heat sterilize up to 180 C.
Specifications
| Catalog Number | 292483005 |
| Brand | DURAN (DWK Life Sciences) |
| Description | PTFE-coated Silicone Septum Seal Platinum cured silicone, GL 45 |
| Sold As | Case of 10 |
| Material | Platinum-cured silicone with PTFE film |
| Thread | GL 45 |
| Diameter | 43 mm |
| Thickness | 3 mm |
| Temperature range | -50 C to 180 C |
| Autoclavable | Yes, 121 C for 15 minutes |
Applications
- Solvent reservoir sampling
- HPLC solvent bottles
- Closed transfer of reagents
- Sterile media sampling
