Caps, Screw Top, with Natural Rubber / TFE Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. MICROSOLV Brand. 1000/CS. Special Order Item.
Additional Info:
These 9-425 Screw Caps are designed for use with standard 12 x 32 mm autosampler vials and feature Natural Rubber / TFE septa fitted into blue knurled polypropylene caps. This are intended for laboratories seeking silicone-free septa materials for specialized analytical applications.
9502S-80C-B-M utilizes Natural Rubber septa that do not contain siloxanes commonly found in silicone rubber formulations. This can be beneficial for analytical methods where siloxane-related interference must be minimized. The TFE-facing layer provides excellent chemical resistance and inertness comparable to PTFE-facing materials used in many laboratory closures.
The knurled polypropylene cap design provides secure handling and consistent tightening, while the septa construction supports reliable sealing performance during routine autosampler use. Packaged 1000 per case, these caps are well suited for high-volume laboratories requiring specialized septa materials and dependable vial closure performance.
Key Benefits
Natural Rubber contains no silicone-derived siloxanes
TFE-facing layer provides excellent chemical resistance
Compatible with standard 9-425 threaded autosampler vials
Knurled cap design improves grip and handling
Supports reliable vial sealing performance
Suitable for a wide range of analytical workflows
Case quantity packaging supports high-volume laboratory use
Typical Applications
HPLC analysis
UHPLC analysis
GC analysis
LC-MS sample preparation
Pharmaceutical testing
Environmental analysis
Food and beverage testing
Methods sensitive to silicone-related interference
Specifications
Product Type: Screw Caps
Closure Style: Screw Top
Thread Size: 9-425
Cap Material: Polypropylene
Cap Color: Blue
Cap Style: Knurled
Septa Material: Natural Rubber / TFE
Vial Compatibility: 12 x 32 mm Autosampler Vials
Quantity: 1000 Caps per Case
Brand: MICROSOLV
Compatibility
Fits standard 9-425 threaded autosampler vials
Designed for 12 x 32 mm vial configurations
Compatible with most autosampler platforms
Suitable for HPLC, UHPLC, GC, and LC-MS applications
Related Products
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Important Notes
Special Order Item.
Natural Rubber septa do not contain siloxanes found in silicone rubber
TFE-facing layer provides chemical resistance comparable to PTFE
Designed for use with 9-425 threaded autosampler vials
Packaged 1000 caps per case
Please contact Customer Service for availability, lead times, and ordering assistance