CUSTOM ITEM: Caps, Snap Top, with 0.04" thick, White Silicone Rubber / Natural PTFE Pre-Slit Septa, fitted in smooth, polyethylene, Black Caps. For use with 11mm, 12x32mm Snap Top autosampler vials. BASIK Brand. BULK PRICING.
Additional Info:
Snap caps provide a fast, press‑fit sealing solution that simplifies vial preparation while maintaining consistent autosampler performance. The silicone/PTFE septa combination delivers dependable sealing and chemical resistance for routine analytical workflows.
The 9502C‑E‑35K BASIK Snap Caps feature 0.04" thick natural PTFE pre‑slit septa bonded to silicone rubber, allowing easier needle penetration and improved injection consistency. Pre‑slit septa are commonly recommended for Waters® Alliance and Acquity systems, where reduced penetration resistance supports reliable autosampler operation.
Natural PTFE contains no color pigments, minimizing the risk of extractables and background interference in sensitive analyses. As part of the BASIK product line, these caps offer a cost‑effective solution for laboratories requiring dependable performance at lower cost. The black polyethylene cap is ideal for light‑sensitive samples while supporting efficient workflow organization.
Key Features & Benefits
Pre‑slit septa ✅ Easier needle penetration
Natural PTFE ✅ No pigments, reduces extractables
Silicone/PTFE construction ✅ Reliable sealing and resealing capability
0.04" thick septa ✅ Durable for repeated injections
Economical BASIK line ✅ Cost-effective for routine use
Black cap format ✅ Ideal for light-sensitive samples
Typical Applications
HPLC and UHPLC analysis
LC‑MS workflows
Waters® Alliance and Acquity systems
Routine analytical laboratories
Light-sensitive sample handling
Important Notes
For 11 mm, 12 × 32 mm snap top autosampler vials only
Suitable for multiple injections
Pre‑slit septa reduces penetration resistance
Natural PTFE minimizes risk of extractables from dyes
This and other custom items are Custom Ordered and require quotation
Additional Resources
Custom Item Pricing Information