Product Description
When aggressive solvents or high sterilization temperatures would degrade an ordinary polypropylene cap, a fluoropolymer closure keeps bottles sealed and samples clean. These premium caps and pouring rings are built from high-purity, colorant-free materials suited to pharmaceutical and trace-analysis work.
This listing is for DURAN catalog number 1088679: GL 45 Premium Screw Cap, PFA, with PTFE-coated, platinum cured silicone cap liner, Pack of 5. The screw caps are molded from PFA and fitted with a platinum-cured silicone liner faced with PTFE for a tight seal. Matching PFA pouring rings give drip-free dispensing, and replacement liners are sold separately. Components are offered in GL 25 and GL 45 sizes to fit standard laboratory bottle threads and can be autoclaved. Order it from LIGHT LABS and keep your lab stocked with genuine DWK Life Sciences products.
Key Features
- PFA construction – Fluoropolymer body resists high temperatures and a broad range of chemicals.
- Colorant-free purity – High-purity polymer without added colorants helps protect sensitive samples.
- USP Class VI materials – Pharmaceutical-grade materials suit regulated and biopharma workflows.
- PTFE-faced silicone liner – Platinum-cured silicone liner with a PTFE face delivers a reliable, inert seal.
- Drip-free pouring ring – Matching PFA ring lets you pour cleanly and can be replaced on its own.
Specifications
| Catalog Number | 1088679 |
| Brand | DURAN (DWK Life Sciences) |
| Description | GL 45 Premium Screw Cap, PFA, with PTFE-coated, platinum cured silicone cap liner |
| Sold As | Pack of 5 |
| Cap material | PFA |
| Liner | PTFE-coated platinum-cured silicone |
| Pouring ring material | PFA |
| Thread | GL 25; GL 45 |
| Material grade | USP Class VI |
| Autoclavable | Yes |
Available Options
- 1088678 – GL 45 Premium Pouring Ring, PFA, Pack of 5
- 1129600 – GL 25 Premium Screw Cap, PFA, with PTFE-coated, platinum cured silicone cap liner, Pack of 5
- 292481407 – GL 25 Premium Screw Cap, replacement cap liner, Pack of 10
- 292482909 – GL 45 Premium Screw Cap, replacement cap liner, Pack of 10
Applications
- Storing aggressive solvents and acids
- Pharmaceutical and bioprocess media bottles
- Trace metal and high-purity analysis
- Autoclave sterilization of bottled media
