DURAN® aluminum closure GL 45, silver, with high temperature sealing washer (PTFE film red VMQ)

DURAN® aluminum screw cap GL 45, with cap insert (PTFE coated red silicone) Aluminum is an alternative material to the plastic used for most screw caps for laboratory bottles. Caps are available as closed caps with PTFE coated high temperature insert or as caps with opening for use with septum or stopper. Metal closures feature a wide temperature tolerance range and high mechanical strength. In addition, aluminum offers superior barrier properties for protection against light, moisture, oxygen and other gases, for example. Special features and benefits: Free of "carbon-based plastics," plasticizers, phthalates, etc. Can be used in the high-temperature range up to +260 °C for depyrogenation or hot-air sterilization* Practical: thread fits all DURAN® GL 45 glass bottles from 100 ml to 20 liters Secure sealing in accordance with USP Class VI with PTFE-coated silicone liner Cap liner is not supplied pre-assembled for easier further processing and is replaceable Convenient opening and resealing thanks to knurled rim for better grip even with wet hands or gloves Protection: Electrically conductive material - ESD discharge Versatile: Open top closure for use with DURAN® GL 45 bromobutyl rubber stopper or silicone Septa extra protection - Optional 45 mm protective cap for closing the open top closure Application: As an alternative to plastic screw caps for laboratory bottles, high temperature processing and applications, cryogenic / cryogenic sample storage, storage of active pharmaceutical ingredients and sensitive material, The open top aluminum cap is a ''plastic free'' alternative to the PBT plastic perforated cap