Product Description
VialMAX™ 20mL Headspace Vial Crimp Caps (PTFE/silicone insert), Silver-color, case of 800 (8 packs of 100)
Headspace Crimp Caps with PTFE/Silicone Septa for 20mL Vials
In headspace analysis, a weak seal means lost volatiles and results you can't trust. These VialMAX crimp caps come with non-slit PTFE/silicone septa already assembled, so you can cap and crimp without handling loose septa. They're made to pair with our 20mL crimp-top headspace vials. Ships from our Maryland warehouse, with real people on the phone if you need help.
No hidden fees, ever: free ground shipping, no handling fees, no surprise surcharges. Just the product and a clean invoice!
Specifications
| Spec | Detail |
|---|---|
| Fits | VialMAX 20mL crimp-top headspace vials (23 x 75mm) |
| Cap diameter | 20mm |
| Septa | PTFE/silicone, non-slit, preassembled |
| Cap color | Silver |
| Cap material | SPEC NEEDED |
| Septa thickness | SPEC NEEDED |
| Magnetic | SPEC NEEDED |
| Packaging | Case of 800 (8 packs of 100) |
Key Features
- Septa come preassembled in the cap to save bench time
- Non-slit PTFE/silicone septa for a tight seal on volatile samples
- PTFE face helps keep the septum chemically inert toward the sample
- Made to pair with VialMAX 20mL headspace vials
Recommended Applications
- Static headspace GC and GC-MS
- Residual solvent testing in pharmaceuticals and cannabis extracts
- Terpene and VOC analysis
- Environmental, food and beverage volatiles testing
Compatible With
Our VialMAX 20mL rounded-bottom headspace vials and flat-bottom headspace vials. We have not confirmed a brand-for-brand cross-reference yet, so none is listed.
FAQ
Are the septa pre-slit?
No. The PTFE/silicone septa are non-slit, which is typical for headspace work where you want the tightest seal.
Do the septa come already in the caps?
Yes, they're preassembled.
What vials do these fit?
They're made for our VialMAX 20mL crimp-top headspace vials. Cap diameter: 20mm.
What temperature are the septa rated for?
SPEC NEEDED. Contact us with your incubation temperature and we'll confirm.
What's in a case?
800 caps, packed as 8 packs of 100.




