Ultimate Guide to Static Mixers for 2-Part Adhesives

Two part adhesives like Epoxies, MMA’s, Urethanes and Silicones require plastic static mixer nozzles to mix and dispense the A and B sides. The two materials enter the static mixer where they run through a series of chambers called Elements which mix the two sides and activate the curing process. Static mixer nozzles are an excellent way to save time and money over trying to mix and dispense two part adhesives by hand.

Because there are so many different adhesive ratios and cartridge types, choosing the correct static mixer can get a bit confusing. In this video, we’re going to explain all of the cartridge and nozzle options so you can be confident when choosing a static mixer for your dispensing needs.

Complete Guide to Static Mixer Nozzles Video

If you're more of a visual learner, we've put together an extensive video reviewing all of the current static mixer types, sizes and technologies.

Types of Static Mixers

Static mixers can take any number of forms, each suited to particular applications and with unique advantages and disadvantages. These include in-line mixers, where components are placed as a permanent part of the dispensing line, and static dynamic mixers, which have moving parts but are not powered. Disposable bayonet mixers, however, are by far the most common and widely applicable. Disposable static mixers take the form of a nozzle that attaches to either meter mix and dispense (MMD) or handheld dispensing equipment. Their internal components can vary greatly depending on the needs of the application. The most common are the helical type and the box chamber type. Disposable static mixers are designed to be thrown away after use which can be cost effective compared to the flushing and cleaning necessary in non-disposable mixers. They also make sense for equipment which will handle multiple adhesive types.

What is the Difference Between Standard vs Quadro Static Mixer Nozzles?

Before we dig into the different sizes and connections on static mixer nozzles, we're going to briefly discuss the difference between standard and Quadro (also known as Turbo) mixers.

Standard static mixers are the oldest technology in two part adhesive dispensing. These nozzles are round and come in a wide range of connection types. Standard mixers typically require longer nozzles and more mixing elements to create the same mixing quality as Quadro mixers.

Quadro mixers are the newest technology to two part cartridge dispensing and are square in shape. Quadro mixers allow for more complete mixing in a shorter nozzle. The advantage of Quadro style nozzles is that there is less wasted adhesive left over in the nozzle and users can get closer to their substrates when dispensing.

How to Choose the Right Static Mixer

The type of static mixer nozzle you will need will depend on a number of different factors but users should always start with the type of connection required. Different cartridges and dispensing equipment use different connectors. After you are confident the connection type is correct for your equipment or cartridge, then the best static mixer can be chosen for a particular adhesive or application need.

  • Dispensing Equipment - One key consideration is if the adhesive will be dispensed by machine or hand held application. Disposable mixers are more frequently used for handheld equipment and are compatible with various cartridge sizes. Machine dispensing applications may also use static mixers, particularly when adhesives are being changed or other mixing options aren't feasible.
  • Shot Size - A larger shot size/faster dispensing will require fewer mixing elements and a larger diameter opening. Because a larger diameter usually means less-efficient mixing, a balance is required between the two. Smaller shot sizes require more mixing elements and smaller diameter for an ideal mix.
  • Adhesive Characteristics - Thicker adhesive components require larger diameter openings to flow and mix properly. The difference between component viscosities will also affect the number and type of elements needed.

Static Mixers by Cartridge Size

The first step to choosing the right static mixer nozzle is knowing what size cartridge or meter mix equipment you will be dispensing from. We're going to review all of the available mixer nozzle options cartridges from 50ml all the way up to high volume meter mix equipment.

Static Mixer Nozzles for 50 ml Adhesive Cartridges

50ml cartridges for two part adhesives are extremely popular and a great way to mix and dispensing two part adhesives for low volume applications or those that require lightweight, precise application of material. There are two types of 50ml cartridges, each of which require a different type of mixer nozzle.

Bayonet Static Mixers for 50ml Cartridges (A-System)

A System : 50ml Cartridge

The Sulzer Mixpac A-System 50ml adhesive cartridge comes in a variety of configurations and mixing ratios. The A-System cartridges can be dispensed with most standard cartridge guns and provide a top of the line solution for two part adhesive dispensing.Text


The Infinity Bond Bayonet static mixer nozzle is the go-to mixer for two part 50ml adhesive cartridges. High quality and low cost make this static mixer the perfect match when dispensing epoxies, acrylics, urethanes and more.

The Sulzer Statomix MAH (formerly MA Series) is a bayonet style mixer with a twist and lock mount for 1:1 and 2:1 adhesive dispensing. Locking the MAH mixer into place automatically aligns the first element when using the Sulzer A System Kit.


B-System Static Mixers for 50ml Cartridges

The Sulzer Mixpac B Series 50 ml cartridge offers a complete system including built in piston retention for easier use. The rectangular back on the cartridge allows it to fit standard 50ml cartridge guns and it comes in a variety of configurations to better fit users' dispensing needs.


The MBH 05-20T static mixer from Sulzer Mixpac is high quality static mixer for dispensing 2:1 adhesives and materials. The MBH 05-20T utilizes a stepped tip giving users the ability to adjust adhesive bead size by cutting the nozzle tip. This mixer utilizes 20 elements with a 5.4 mm element diameter and a twist and lock system for connecting to your cartridge.Text

The Sulzer MBQ quadro static mixers allow for optimal mixing between 1:1 and 2:1 two part epoxies, silicones, acrylics, urethanes and more. The Quadro form allows for better mixing making the mixer nozzle shorter and ultimately letting users get closer to the materials they are bonding.

The Sulzer Mixpac MBHX Series (formerly MBX Series) mixers can be used with the Sulzer B system components for 4:1 and 10:1 dispensing. The MBHX Series uses a twist and lock system that uses separate outlets for the A and B materials ensuring there is no cross-contamination.

The Sulzer MBQX 05-24L static mix nozzle is a quadro mixer with 24 mixing elements with a 5.3mm element diameter and a Luer Lock tip. The Luer Lock tip on the MBQX 05-24L allows users to add needles and tips for precision or specialty dispensing.

Static Mixer Nozzles for 200,400 and 600 ml Adhesive Cartridges

Larger cartridges for two part adhesives are a great option for medium to high volume dispensing application. There are two types of larger cartridges, each of which require a different type of mixer nozzle.

C System Static Mixing Nozzles for 200ml Adhesive Cartridges

The Sulzer Mixpac 200ml C-System cartridges are a side by side dispensing solution for two part adhesives. The C-System cartridges can be filled with most two part adhesive materials that need to be mixed to activate. A static mixer nozzle can then be attached to the cartridge system and dispense the material using standard 200ml manual or pneumatic guns.


The Infinity Bond 160-824 is the top selling disposable static mixer for standard 1:1 or 2:1 adhesive dispensing from 200ml or 400ml cartridges. The Infinity Bond 160-824 nozzle is a bell mixer with a stepped tip allowing it to be cut at different sizes to adjust dispensing volume.

The Infinity MCH 10-24T static mixer is equal (or higher) in quality to its name brand equivalents but offers exceptional cost savings. This mixer has a bell connection and stepped mixing outlet allowing it to be cut to adjust the dispensing volume.


F System Static Mixing Nozzles for 200ml Adhesive Cartridges

The Sulzer Mixpac F System 200ml cartridge allows for medium to high volume adhesive dispensing and includes self venting lip seal pistons for easier extrusion as well as preassembled nose plug. This cartridge is available in two different materials to better fit the materials being filled and dispensed.


The Sulzer MFH Series static mixer features a unique outlet that connects the nozzle to the cartridge. This patented design is unique to Sulzer allowing the two materials to enter the nozzle through their own orifice completely eliminating the possibility of cross contamination. The MFH mixers are used for dispensing 1:1 and 2:1 ratio adhesives like epoxy, silicone, urethane and acrylics. These nozzles are for use with Sulzer F Series 200ml and 400ml cartridges.

The Sulzer MFHX Series static mixers are used for dispensing 4:1 and 10:1 adhesives. What makes the MFHX nozzles unique is their patented connector that has two separate orifices guaranteeing to eliminate cross-contamination of part A and B materials reducing clogging and extending cartridge life. The MFHX series is optimal for dispensing epoxy, acrylic, silicone, urethane and other high viscosity adhesives.

The Sulzer Mixpac MFQX Series static mixers are the Quadro mixers for the F Series allowing for 4:1 and 10:1 adhesive dispensing. The MFQX quad mixer give optimal mixing in a smaller footprint than traditional mixers allowing users to work more closely with the materials they are bonding while still keeping A and B parts form mixing prematurely and blocking or clogging the mixer tip.


F System Static Mixing Nozzles for 400ml Adhesive Cartridges

The Sulzer Mixpac F System 400ml cartridges allows for medium to high volume adhesive dispensing and includes self venting lip seal pistons for easier extrusion as well as a preassembled nose plug. This cartridge is available in two different materials to better fit the materials being filled and dispensed.


What makes the Sulzer MFH Series static mixer unique is the outlet that connects the nozzle to the cartridge. This patented design is unique to Sulzer allowing the two materials to enter the nozzle through their own orifice completely eliminating the possibility of cross contamination. The MFH mixers are used for dispensing 1:1 and 2:1 ratio adhesives like epoxy, silicone, urethane and acrylics. These nozzles are for use with Sulzer F Series 200ml and 400ml cartridges.

The Sulzer MFHX series static mixers are used for dispensing 4:1 and 10:1 adhesives. What makes the MFHX nozzles unique is their patented connector that has two separate orifices guaranteeing to eliminate cross-contamination of part A and B materials reducing clogging and extending cartridge life. The MFHX series is optimal for dispensing epoxy, acrylic, silicone, urethane and other high viscosity adheisves.

The Sulzer Mixpac MFQX Series static mixers are the Quadro mixers for the F Series allowing for 4:1 and 10:1 adhesive dispensing. The MFQX quad mixer give optimal mixing in a smaller footprint than traditional mixers allowing users to work more closely with the materials they are bonding while still keeping A and B parts form mixing prematurely and blocking or clogging the mixer tip.

Static Mixer Nozzles for Meter Mix Dispensing Equipment

Meter Mix equipment is perfect for high volume applications and needs. Bell static mixing nozzles are a high quality, low cost solution for a wide variety of high volume applications.

Bell Static Mixers for Meter Mix Machines

The Sulzer Mixpac Statomix MS Series Bell Mixer is one of the most tried and true static mixers for two part adhesive dispensing with meter mix equipment, the Sulzer MS Series static mixer offers a high quality, low cost solution for a wide variety of applications. The MS Series is formed of a high strength polyacetal so it can withstand high pressure meter mix machines. The Sulzer Mixpac MS Series are one of our most popular, low cost static mixers helping to drive efficiency in many automated or semi-automated applications.

One of the most tried and true static mixers for two part adhesive dispensing with meter mix equipment, the Sulzer MS Series static mixer offers a high quality, low cost solution for a wide variety of applications.

The Sulzer ME Series static mixer nozzles are a tried and true mixer for dispensing adhesive with meter mix equipment. The ME nozzle has a stepped tip which can be cut to adjust the dispensing volume and is available in many different element and diameter configurations.

Helpful Hint

The MS Series has an inner diameter on the bell housing of .657 inches while the ME Series mixer has an inner diameter on the bell housing of .625 inches. This is essentially the only difference between the two mixers.

Static Mixer Nozzles for Rotary Machine Dispensing Equipment

Static mixing nozzles for rotary machine dispensing equipment are designed for use with specialty meter mix and dispensing equipment. Static mixing nozzles provide inexpensive solutions for the dynamic mixing, with elements that rotate within the nozzle attachment.

The Sulzer Mixpac Statomix MSR Series (formerly MR Series) mixer is a disposable plastic mixer designed for use with meter mix and other dispensing equipment. The MSR Series is especially good at dispensing low viscosity adhesives like hard to mix foam and urethane elastomers.


Choosing the Best Static Mixer Nozzle Based on Adhesive Type

The materials you are mixing directly determine the range of elements needed to mix the materials into a homogenous material. Some materials are considerably more difficult to mix than others, so it is crucial that you have the appropriate amount of elements in your mixer to get the mix you need.

Some common materials you will likely be working with include acrylic, epoxy, poly-sulfide, PU foam, silicone, and urethane. Typically, the element range needed for each of these separate materials is as follows:

Material Range of Elements

Acrylic

8-20 Elements

Epoxy

15-24 Elements

Polysulfide

24-32 Elements

PU Foam

10-24 Elements

Silicone

20-30 Elements

Urethane

24-36 Elements

There are two factors that can indicate you should use a number toward the higher range. The first is the viscosity of the materials; if the two elements have very different viscosities (i.e. material A is 5,000 cps and material B is 150,000 cps), you will likely need to use the higher number of elements. The second is the material ratio; if you are dealing with a mixing ratio of 7:1, for example, a higher number of elements will be needed to achieve a pure, homogenous mix.

What will you attach the mixer to?

This question will help you determine what connection style/inlet you will use with your mixer. There are three main connection types: bayonet, bell, and integral nut (threaded). Bayonet mixers feature a simple twist-and-lock system, and are recommended for 9-50ml cartridges. Bell mixers come in a slightly larger variety, with options for round, square, and rotary connections. Typically bell mixers are used for 200ml cartridges, or larger. Inline, or threaded mixers, are also for larger cartridge sizes, but do not require the use of a retaining nut.

Final Thoughts

Choosing the best static mixer for your application is a process but looking at your type of cartridge or valve, what material you're working with, your mixed viscosity of both fluids, and what dispensing application you're aiming for what will help with the process. As always, these are guidelines and it's important to consult your local sales rep for proper testing. Also be sure to check out our Static Mixer Tool to find the perfect mixer for your application.