Description
Adhesive that cures inside the mixing nozzle is money in the trash. Every purge, every stop in the run, and every nozzle you pull off the cartridge takes retained adhesive with it. On expensive epoxies and thermally conductive pastes it adds up fast.
The Xemex X2-A5-7L Low-Waste Static Mixer holds just 0.6 mL of retained volume. Seven Xemex mixing elements in a 50.5 mm body deliver mixing performance equivalent to a 24-element traditional mixer, so less material stays behind in the nozzle on every cycle.
The luer-lock outlet threads on and locks needles and precision dispensing tips for controlled bead placement. The A-system bayonet inlet fits standard bayonet cartridges at 1:1 through 10:1 ratios and works with manual guns, pneumatic guns, and automated or cobot dispensing.
Compatible with epoxies, methacrylates (MMA), urethanes, and silicones. Designed and manufactured in the United States.
See How Xemex Low-Waste Mixers Work
The Xemex element geometry completes mixing in fewer elements, which shortens the mixer and cuts the amount of adhesive trapped inside it.
Key Product Details
| Property | Value |
|---|---|
| Product | Xemex X2-A5-7L Static Mixer |
| Manufacturer Part Number | X2-A5-7L |
| Connection Style | A-System (Bayonet) |
| Outlet Tip | Luer-Lock |
| Insert Material | Polyester (PETG), yellow |
| Housing Material | Polypropylene |
| Mixing Elements | 7 |
| Equivalent To | 24 elements |
| Inner Diameter | 5.3 mm (0.21 in) |
| Total Length | 50.5 mm (1.99 in) |
| Retained Volume | 0.6 mL |
| Compatible Mix Ratios | 1:1, 2:1, 4:1, 10:1 |
| Adhesives Served | Epoxies, Methacrylates, Urethanes, Silicones |
| Country of Origin | United States |
Patented Xemex Mixing Technology
Each Xemex element multiplies the striation count, so full mixing happens in seven elements instead of 24. Shorter mixer, same mix quality, less adhesive left inside when you are done.
Performance in Production
- 0.6 mL retained volume, tied with the X2-A5-7T for the lowest in the Xemex line.
- Seven Xemex elements mix like a 24-element traditional nozzle.
- Short 50.5 mm body puts the tip closer to the work surface for better operator control.
- Luer-lock outlet locks on needles and precision tips instead of relying on a friction fit.
- Polyester insert supports moisture-sensitive adhesive systems.
- Fits manual, pneumatic, and automated or cobot dispensing without changing equipment.
Installation and Handling
- Fits standard A-system bayonet cartridge connections.
- Purge a short bead before the first shot to confirm both sides are flowing.
- Replace the mixer once adhesive begins curing inside the nozzle.
- Leave the spent mixer on the cartridge between runs to seal it, then fit a fresh one for the next job.
Common Applications
- Electronics. Potting, encapsulation, and sealing of sensitive components where complete mixing prevents soft spots.
- Automotive. Structural bonding and component assembly, including tight-access and robotic cells.
- Industrial manufacturing. Assembly, sealing, and composite bonding with two-component adhesives.
- Precision and needle-tip dispensing
A-System Tip Options
The A-system bayonet mixer comes in two outlet styles. Same body, same seven elements, same 0.6 mL retained volume. Only the tip changes.
| Part | Outlet | Best For |
|---|---|---|
| X2-A5-7L (this page) | Luer-Lock | Needles that need to stay locked on under pressure |
| X2-A5-7T | Luer-Slip | Slip-fit needles and tips, quick changes |
Xemex Mixer Comparison
Match the mixer to the cartridge or meter-mix hardware you already run.
| Model | Connection | Outlet | Inner Diameter | Elements | Retained Volume |
|---|---|---|---|---|---|
| X2-A5-7L | A-Style (Bayonet) | Luer-Lock | 5.3 mm | 7 | 0.6 mL |
| X2-A5-7T | A-Style (Bayonet) | Luer-Slip | 5.3 mm | 7 | 0.6 mL |
| X2-G8-7S | G-Style (Threaded) | Stepped | 8.7 mm | 7 | 2.9 mL |
| X2-C8-8S | C-Style (Bell) | Stepped | 8.7 mm | 8 | 3.4 mL |
| X2-F8-8S | F-Style (1:1, 2:1) | Stepped | 8.7 mm | 8 | 5.2 mL |
| X2-FZ8-8S | F-Style (4:1, 10:1) | Stepped | 10.7 mm | 8 | 5.0 mL |
Browse the full Xemex low-waste mixer line
Frequently Asked Questions
Why does adhesive harden inside a mixing nozzle?
Once the two components meet in the mixer, the cure starts. Whatever is sitting in the nozzle when you stop dispensing will set up and get thrown away with the mixer. The larger the mixer’s internal volume, the more you lose on every stop and every changeover.
How much adhesive does a static mixer waste?
It depends on the mixer’s retained volume. The X2-A5-7L holds 0.6 mL. Longer traditional helical and square-element mixers hold considerably more, and that difference repeats on every cartridge and every purge.
Does a shorter static mixer still mix properly?
The X2-A5-7L achieves mixing performance equivalent to a 24-element traditional mixer using seven Xemex elements. The gain comes from the internal element geometry, not from added length.
What is the difference between a luer-lock and a luer-slip mixing nozzle tip?
A luer-lock outlet threads on and locks a needle or precision tip in place. A luer-slip outlet holds the tip by friction fit, which makes changes faster but gives up the mechanical lock. Choose luer-lock when the needle has to stay put under dispensing pressure, luer-slip when you are swapping tips often.
Will the X2-A5-7L fit my cartridge?
It fits standard A-system bayonet cartridges at 1:1, 2:1, 4:1, and 10:1 ratios. If your cartridge or meter-mix unit uses a bell, threaded, or F-style outlet, use the matching Xemex connection style from the comparison table above.
Can a static mixer be reused?
No. Once adhesive cures inside, the mixer is done. Standard practice is to leave the spent mixer on the cartridge as a seal and fit a fresh one for the next run.
Customer Feedback
“The new Xemex mixer worked fantastic with Dow 3-4207. Greatly reduces wasted potting material and also mixed the 2 parts very well. This is exactly what we needed.”
Direct Customer Quote
“My customer had sporadic curing issues running EP965LVLX with a .187 x 48 helical mixer they were using. They dispensed test patterns with Xemex and got a complete cure. They told me these mixing sticks work great.”
Sales Representative, Eastern US
“My customer tested the Xemex mixer with an expensive thermally conductive paste. It was easy to see the cost savings from wasting less material in the mixer compared to the helical mixer they were previously using.”
Sales Representative, Southern US
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