Aluminum 20mm Crimp Seals

Thermo Scientific™ Open-Top Screw Caps provide an inert, airtight seal and direct puncture-access to sample with a syringe needle.

Use Thermo Scientific™ SureSTART™ 20 mm Crimp Caps with crimp vials that have a 20 mm opening, including our SureSTART 20 mL Glass Crimp Top Headspace Vials (Level 3). Select Level 3 products for ultimate performance and sensitivity from your methods, while maintaining the highest levels of sample security and integrity. Choose from aluminum and aluminum/magnetic tinplate caps with all-purpose silicone/PTFE or chlorobutyl/PTFE septa of various hardness values designed to reduce autosampler needle issues. Use Thermo Scientific™ Manual or Electronic Crimpers and Decappers for easy application and removal of crimp caps.

Use Thermo Scientific™ SureSTART™ 11 mm Snap Caps with snap vials that have an 11 mm opening, including our SureSTART 2 mL Glass Snap Vials and 2 mL Polypropylene Snap Microvials for <2 mL samples (Level 1). Select Level 1 caps for chromatography approved, cost optimized products that are suitable for everyday analyses and compatible with all instrument types. We offer soft polyethylene caps with double snap functionality that guarantees a tight seal. Our snap caps include polyethylene septa designed to reduce autosampler needle issues.

Prevent septa push through and over- and under-tightening. With Advanced Vial Closure System (AVCS) technology built into 9 mm Thermo Scientific™ 9 mm Autosampler Vial Screw Caps and Septa you will get an optimal, consistent seal every time. With just one turn, they offer easy-on, easy-off convenience, and are a cost effective alternative to caps with bonded septa. Choose from Thermo Scientific™, Thermo Scientific™ National™, and Thermo Scientific™ Chromacol™ brands.