Screw cap with lip seal, purple, GL 45, PP

Screw cap with lip seal, purple, GL 45, PP is a polypropylene laboratory closure designed for dependable sealing of GL 45 threaded bottles and vessels. The purple polypropylene body incorporates an integrated lip seal that helps maintain a secure fit on the vessel neck during storage, transport and day-to-day laboratory handling. Compatibility with the GL 45 thread standard allows use on many common reagent bottles, media bottles and sample containers found in research and routine analytical settings.

This article is part of Screw caps & closures, in Stoppers, caps & closures.

Constructed from polypropylene (PP), the cap provides the toughness and chemical resistance expected of standard laboratory plastics. Manufacturer information states resistance to steam up to 140 °C, supporting workflows that include steam exposure within the thermal limits of polypropylene. The purple finish enables clear visual distinction and colour-coding of vessels, contents or process steps on the bench or in storage areas.

Supplied as one piece from manufacturer lab-o-plastix, this purple GL 45 screw cap with lip seal is a practical consumable for laboratories that rely on standardised GL 45 closures and benefit from colour differentiation. It addresses everyday sealing needs in sample preparation, media handling and general wet-chemistry applications where a reliable PP lip-seal cap is required.

Key features

• Pack size: 1 pc
• Product type: Screw cap with lip seal
• Material: Polypropylene (PP)
• Colour: Purple
• Thread: GL 45
• Steam resistance: up to 140 °C