LLG-8mm Combination Seal, PP Screw Cap, Black, Closed Top, 8-425 Thread, Natural Rubber Red-Orange/TEF Transparent, 60° Shore A, 1.3 mm

The LLG Labware 8 mm Combination Seal, with PP screw cap, black closed top, and 8-425 thread, is designed for secure vial closure in analytical and chromatography workflows. This cap and septum combination provides dependable sealing performance for routine laboratory applications where sample protection, compatibility, and reliable access are important. With a natural rubber and TEF septum construction, it supports practical use in laboratories handling a wide range of samples and solvents.

Key Features:

• Brand: LLG Labware
• 8-425 thread compatibility: Designed for use with compatible 8-425 threaded vials, this combination seal supports secure and consistent closure in analytical laboratory workflows.
• Black PP screw cap with closed top: The polypropylene cap provides good chemical resistance and durability, while the closed top design helps protect the septum and maintain a clean external surface.
• Natural rubber red-orange/TEF transparent septum: The septum combines the elasticity of natural rubber with the protective benefits of a TEF surface, supporting reliable sealing and compatibility in routine sample handling applications.
• 60° Shore A hardness: The septum hardness is designed to provide a balanced combination of pierceability and resealing performance, helping maintain sample integrity during repeated access.
• 1.3 mm septum thickness: The 1.3 mm thickness supports dependable sealing and practical puncture performance for standard analytical procedures.
• Suitable for chromatography and sample storage: This combination seal is well suited to vial closure in chromatography, sample preparation, and general analytical laboratory use where secure sealing is essential.
• Reliable protection against leakage and contamination: The cap and septum assembly helps reduce the risk of sample loss, contamination, and inconsistent closure during storage and handling.

The LLG Labware 8 mm Combination Seal is a practical choice for laboratories that need reliable vial closures for analytical and chromatography applications.

Frequently Asked Questions

1. What vial thread is this combination seal designed for?
This combination seal is designed for use with compatible 8-425 threaded vials.

2. What material is the screw cap made from?
The screw cap is made from polypropylene, which offers good durability and chemical resistance for laboratory use.

3. What is the septum made from?
The septum is made from natural rubber in red-orange with a transparent TEF layer.

4. What does 60° Shore A mean?
It refers to the hardness of the septum material, which helps provide a balance between easy puncture and reliable resealing performance.

5. What applications is this cap suitable for?
It is suitable for analytical laboratory work, including chromatography, sample storage, and routine vial handling applications.