H2: Introduction
This guide explains how to use a static mixing tube on a two-part adhesive cartridge. It covers the operating sequence for first use, continuous dispensing, short pauses, and tube replacement.
Introduction
This guide explains how to use a static mixing tubeon a two-part adhesive cartridge. It covers the operating sequence for first use, continuous dispensing, short pauses, and tube replacement.
Step 1: Check Cartridge Outlet and Tube Fit
Check their geometry: Use a static mixing tube that matches the cartridge and your adhesive. You can learn more about how to match the hybrid tube and 2K cartridge.
Check if they are intact: Remove the cartridge’s storage cap and verify both ports are undamaged.
Step 2: Attaching the Mixing Tube
Align and seat the tube: Align the tube with the cartridge outlet, then insert it into the connection position.
Lock the tube: Secure the mixer according to the cartridge interface. As for bayonet fittings, turn until locked. As for threaded systems, tighten by hand.
Step 3: Purging Before First Use
Point the tube at a waste container: Before the first shot, you should aim the tube into a waste container rather than the surface you need to dispense.
Dispense the required purge volume: Purge enough mixture to clear the unmixed front section. Continue until the bead looks uniform in color and texture.
Step 4: Dispensing on the Work Surface
Position the tube: Start at the intended dispense point and keep a steady position appropriate for the target bead.
Maintain a consistent speed: The bead width is governed by movement speed relative to flow rate. Decelerating makes the bead wider, while accelerating makes it narrower. On automated systems, confirm speed and pressure settings before production.
Retract cleanly: Lift it away with a slight twist or rotation. In this way, you can reduce stringy glue tails, thereby avoiding cross-contamination or uneven glue application.
Step 5: Pause or Shutdown
For a short pause: Keep the tube on only if the material remains within workable time and the nozzle is not beginning to block.
Before resuming production: Dispense a fresh purge bead and confirm normal flow. If the material may have advanced or cured inside the tube, you should replace a new one.
Step 6: Replace the Tube
Replace the mixing tube whenever: Replace the tube if your previous tube is cured, blocked, or no longer delivering consistent material. Release pressure, remove the old tube, inspect the cartridge outlet, install a new tube, and purge again before returning to production.
Stage of Use: First Use · Continuous · ResumeAfter Pause
The most common source of process errors is applying the wrong sequence to the wrong scenario. This table summarises the critical differences between the three main operating modes.
| Step / Decision | First Use | Continuous Use | Resume After Pause(Tube Left On) |
| Remove cap | Required | N/A | N/A |
| Install mixing tube | Required | Already installed | Replace with new tube |
| Purge volume | Required | Minimal | Full purge |
| Mix quality check | Required | Monitor continuously | Required |
| Tube replacement | N/A | If tip is blocked | Required |
Conclusion
For consistent results, follow the operating sequence in order: check fit, install the static mixing tube, purge before production, dispense at a stable rate, release pressure during pauses, and replace the tube when flow or mix quality changes.