CUSTOM ITEM: Caps, Crimp Top, with White Silicone Rubber / Red PTFE Septa, Silver Caps, with a 4mm center hole. For use with 8mm Vials. MICROSOLV Brand. 100/PK. BULK PRICING.
Additional Information:
Provide secure sealing and high‑purity performance with ultra‑clean crimp caps designed for microvolume and sensitive analytical workflows.
9508C-10T-S caps are manufactured from aluminum with a 4 mm center hole, allowing precise needle access while maintaining a strong crimp seal. The fitted white silicone rubber / red PTFE septa is non‑slit, offering improved sealing integrity prior to first injection and helping reduce evaporation or contamination risks.
The 1.3 mm thick septa provides durability and consistent resealing during repeated injections. The PTFE layer ensures excellent chemical inertness and low extractables, while the silicone backing delivers flexibility for reliable needle penetration. These caps are ideal for use with 8 mm serum finish crimp top autosampler vials in LC‑MS, HPLC, and GC workflows.
Key Benefits
Non‑slit septa provides superior sealing before injection
1.3 mm thick septa enhances durability and performance
PTFE/silicone septa offers chemical resistance and resealability
4 mm opening allows consistent needle access
Aluminum crimp design ensures strong, leak‑resistant sealing
Ideal for sensitive and volatile sample applications
Bulk pricing available for high‑volume use
Typical Applications
LC‑MS and LC‑MS/MS workflows
HPLC and UHPLC analysis
GC applications with volatile compounds
Microvolume and trace‑level analysis
Pharmaceutical and analytical laboratories
Specifications
Cap Type: Crimp Top
Diameter: 8 mm
Material: Aluminum (silver)
Septa: White silicone rubber / red PTFE
Septa Type: Non‑slit
Septa Thickness: 1.3 mm
Opening: 4 mm center hole
Compatibility: 8 mm serum finish crimp vials
Pack Size: 100 caps
Compatibility
Designed for 8 mm crimp top autosampler vials
Compatible with standard 8 mm serum finish vials
Suitable for HPLC, GC, and LC‑MS workflows
Performance and Design Notes
Non‑slit septa improves pre‑injection sealing integrity
PTFE surface minimizes analyte interaction
Thicker septa supports repeated injections
Designed for reliable performance in sensitive applications
Important Notes
Custom item with bulk pricing available
Requires proper crimping tools for optimal sealing
Ideal for workflows requiring high purity and secure closure
Custom Item Pricing Information