CUSTOM ITEM: Septa, 20mm, Headspace, Molded, Grey Butyl Rubber / Light Grey Rubber with Laminated PTFE. For use in 20mm Crimp Caps, sold separately. Pharma-Fix type Septa. MICROSOLV Brand. 1000/CS.
Additional Info:
The 95025-03 MICROSOLV Headspace Septa are a made‑to‑order Pharma‑Fix™ style solution, combining molded grey butyl rubber with a PTFE laminate on the sample‑contact side only, providing an optimal balance of sealing strength and chemical inertness.
Designed for 20 mm crimp‑top headspace caps (sold separately), these septa deliver strong vial sealing from butyl elasticity while maintaining reduced sample interaction via PTFE where it matters most.
Custom Order Item – Critical Notice
🚨 Made‑to‑order product
Non‑returnable and non‑cancelable once ordered
May require:
Lead time
Availability confirmation
✅ Recommended for validated workflows requiring Pharma‑Fix™ style septa
Designed for 20 mm Crimp Caps
Diameter: 20 mm septa
Compatible with:
20 mm aluminum or steel crimp caps (sold separately)
✅ Ensures:
Proper fit
Reliable headspace sealing
Pharma‑Fix™ Construction – Balanced Performance
PTFE laminate on sample‑contact (light grey) side only
Butyl rubber underside contacts the vial glass
Provides:
PTFE inertness where sample interaction occurs
Strong butyl‑to‑glass seal for leak resistance
✅ Combines:
chemical compatibility (PTFE)
excellent sealing (butyl elasticity)
Septa Characteristics – Durable & Reliable
Thickness: 3.0 mm
Durometer: 50 Shore A
Provides:
Strong resealing
Consistent injection performance
Mechanical durability
✅ Suitable for repeat injection workflows
Temperature Compatibility – Headspace Ready
Operating range:
-40°C to 120°C
✅ Suitable for:
Standard headspace GC methods
Moderate temperature applications
Bulk Packaging – High Throughput Efficiency
1000 septa per case
Supplied in:
Polyethylene bags
Designed for:
High‑volume laboratories
Routine production environments
✅ Improves inventory efficiency and cost control
Performance Positioning – Pharma‑Fix™ Optimized Option
Compared to fully laminated PTFE (both sides):
✅ Stronger vial seal (butyl‑to‑glass contact)
Compared to butyl‑only septa:
✅ Improved chemical resistance at sample contact surface
Compared to silicone/PTFE:
✅ Enhanced sealing strength
Compared to open septa systems:
✅ Pre‑engineered balance of performance
✅ Ideal for:
regulated environments
pharmaceutical QC labs
methods prioritizing seal integrity + sample protection
Typical Applications
Headspace GC analysis
Pharmaceutical QA/QC and validation
Environmental testing
Food and flavor analysis
Routine and regulated laboratory workflows
Important Usage Notes
Designed for:
20 mm crimp caps (sold separately)
PTFE side:
Must face the sample
✅ Best suited for:
workflows requiring optimal sealing and controlled sample interaction
🚨Made‑to‑Order & Pricing Information
This is a custom, made‑to‑order item.