Product Description
Dry heat, repeated autoclave cycles and harsh chemicals quickly age standard polypropylene closures. This high temperature closure set keeps wide mouth GLS 80 bottles sealed in conditions up to 180 C, reducing how often caps need replacement.
This listing is for DURAN catalog number 1165888: GLS 80 High Temperature Screw Cap, (PPSU) Polyphenylsulfone, white, wide mouth, with PTFE coated, platinum-cured silicone cap liner, Pack of 5. The screw cap is molded from polyphenylsulfone (PPSU) and lined with PTFE-coated, platinum-cured silicone for efficient sealing. A matching PTFE pouring ring provides drip-free dispensing, and replacement liners are available separately. All components offer greater thermal and chemical resistance than polypropylene equivalents and are suitable for steam sterilization. LIGHT LABS supplies the complete DWK Life Sciences line, including Kimble, Wheaton and DURAN labware.
Key Features
- Rated to 180 C – Suitable for high-temperature use and steam sterilization.
- PPSU cap – Polyphenylsulfone offers better heat and chemical resistance than PP.
- PTFE/silicone liner – Platinum-cured silicone with PTFE face seals reliably.
- PTFE pouring ring – Inert ring allows clean, drip-free pouring.
- Replaceable liner – Swap worn liners without replacing the cap.
Specifications
| Catalog Number | 1165888 |
| Brand | DURAN (DWK Life Sciences) |
| Description | GLS 80 High Temperature Screw Cap, (PPSU) Polyphenylsulfone, white, wide mouth, with PTFE coated, platinum-cured silicone cap liner |
| Sold As | Pack of 5 |
| Cap material | Polyphenylsulfone (PPSU) |
| Liner | PTFE-coated platinum-cured silicone |
| Pouring ring material | PTFE |
| Thread | GLS 80 |
| Maximum temperature | 180 C |
| Color | White |
| Autoclavable | Yes |
Available Options
- 1152921 – GLS 80 High Temperature Replacement Cap Liner, PTFE coated, platinum-cured silicone, Pack of 5
- 1167307 – GLS 80 High Temperature Pouring Ring, PTFE, white, Pack of 5
Applications
- High-temperature sterilization of wide mouth bottles
- Aggressive chemical storage
- Hot media and buffer handling
- Pharmaceutical and QC labs
