Key takeaways
- Mixing nozzle: a disposable tip attached to a two-component cartridge, in which the two components mix before being dispensed.
- Applications: glues and adhesives, two-component polyurethanes and silicones, for construction, industrial assembly, aerospace, automotive, and maintenance.
- Selection: based on the cartridge volume (50 to 400 ml for standard systems), its ratio (1:1, 1:2, 1:4, 1:10), and the product's viscosity.
- Etraves: the French representative of Medmix Mixpac, a distributor of nozzles, cartridges, and application guns.
Do you need to mix two fluids to make a bond? To do this, you need what's known as a mixing nozzle. This is a nozzle placed at the end of cartridges, through which the components mix and exit to bond your material. But what exactly do we know about this type of nozzle? Focus on its various aspects.
What's the purpose of the mixing nozzle?
As the name suggests, mixing nozzles are tips designed to mix components. Their sole purpose is to mix two fluids to create a bond. They are therefore application solutions for reactive two-component products such as glues and adhesives, polyurethanes, and silicones. They are used for both large-surface applications and precision professional bonding applications. The industries that most frequently use mixing nozzles are construction, industrial assembly, aerospace, and automotive. Static mixing nozzles are also used for maintenance, repairs, and even DIY projects.
The mixing nozzle is a disposable accessory. It is therefore crucial that, when removing it from the cartridge, the two components do not contaminate each other; this would prevent the remainder of the cartridge from being used. Sulzer technology prevents this risk thanks to its specialized nozzles.
Why use mixing nozzles?
Mixing nozzles are indispensable for mixing two-component fluids, for three essential reasons: precision, exceptional mixing quality and reproducibility.
The mixing nozzle is an accessory that easily fits onto a two-component cartridge. They are then inserted into a dispensing gun. Together, they create a high-performance, portable adhesive dispensing system. There's a wide range of mixing nozzles to suit every type of product and application. So you can easily optimize your bonding and get exactly the same mix quality every time.
The choice of mixing nozzle depends mainly on the volume, the ratio of the cartridge used, and the viscosity of the product. The most common systems correspond to volumes of 50ml to 400ml for ratios of 1/1 ;1/2 ;1/4 and 1/10.
For even greater precision, there are adaptable tips for mixing nozzles, such as needles (often used for bonding electronic components) or spray nozzles.
How can I get mixing nozzles?
As with all professional equipment, you need to turn to experts who have valuable stock and advice. The leading manufacturer of mixing nozzles, Medmix Mixpac, has chosen ETRAVES to represent them in France.
As a contract packer of chemical products, Etraves devotes 1/3 of its production to two-component products, and is now a key distributor of two-component accessories such as mixing nozzles, cartridges and application guns. With 29 years' experience, Etraves puts its expertise at your service.
If you have any particular needs, do not hesitate to contact us at 03 44 26 89 40.
FAQ — Mixing Nozzle
Should you purge a two-component cartridge before installing the nozzle?
Yes. Before attaching the mixing nozzle, extrude a small amount of material without the nozzle until both components flow out evenly; this ensures that the levels in both chambers are aligned. Once the nozzle is in place, discard the first bead, which may be poorly mixed. This purging prevents uncured areas at the start of the bonding process.
How can you prevent a mixing nozzle from clogging?
A mixing nozzle becomes clogged when the mixed product hardens inside it during a break that lasts longer than the product’s pot life. Therefore, the nozzle must be replaced each time after an interruption. The used nozzle can remain in place to seal the cartridge between uses: the components only mix inside the nozzle, which preserves the rest of the cartridge.
