Catalog Number - 9502C-41S

The 9502C-41S BASIK Crimp Caps are engineered for sensitive chromatographic applications, featuring 0.05" thick silicone rubber/PTFE ultra‑low bleed septa to minimize siloxane interference while maintaining strong sealing performance.

Designed for 11 mm crimp‑top and snap‑top, 12 × 32 mm autosampler vials, these caps provide a secure, consistent seal, making them ideal for GC and HPLC workflows where background contamination control is critical.

Ultra Low Bleed Silicone/PTFE Septa – Reduced Interference

• Silicone rubber / PTFE construction

• 0.05" thickness for durability and sealing strength

• Formulated to minimize:

  • Siloxane bleed

  • Background contamination

✅ Ideal for GC applications sensitive to silicone interference

Optimized for GC & HPLC Applications

• Excellent for:

  • Gas Chromatography (GC)

  • HPLC workflows requiring crimp caps

• Reduces:

  • Baseline noise

  • Contaminant peaks

✅ Ensures cleaner chromatograms and improved data quality

Reliable Resealing Performance

• Silicone/PTFE septa allow:

  • Multiple needle penetrations

  • Strong resealing after injection

✅ Suitable for multi‑injection autosampler sequences

Crimp Top Design – Secure Seal Integrity

• 11 mm aluminum crimp cap

• Provides:

  • Airtight sealing

  • Reduced evaporation

  • Consistent vial closure

✅ Ideal for volatile and non‑volatile samples

Compatible with Standard Autosampler Vials

• Fits:

  • 11 mm crimp‑top vials

  • 11 mm snap‑top vials (with proper tools)

• Designed for 12 × 32 mm autosampler vials

✅ Ensures broad compatibility with GC and HPLC systems

Durable Aluminum Construction

• Silver aluminum caps

• Ensures:

  • Uniform crimping

  • Strong mechanical seal

  • Reliable performance

✅ Supports consistent, repeatable workflows

Typical Applications

• GC analysis requiring low bleed septa

• HPLC autosampler workflows

• Pharmaceutical and environmental testing

• Trace analysis where silicone bleed must be minimized

Important Usage Notes

• Requires crimping tool for proper sealing

• Ultra‑low bleed septa reduce:

  • Siloxane interference

• Recommended when:

  • Standard silicone/PTFE septa produce background issues

✅ Also available:

• Case Quantity of BASIK 9502C-41S Crimp Top Caps with Ultra Low Bleed Silicone/PTFE Septa (bulk packaging option for high‑volume laboratories)