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3M™ Scotch-Weld™ EPX Mixing Nozzle
- Simultaneous metering, mixing, and application in one step
- Used nozzle doubles as a cartridge storage seal between uses
- Compatible with 3M EPX manual and pneumatic applicators
Product Description
Product Description
The 3M™ Scotch-Weld™ EPX Mixing Nozzle is a disposable accessory for use with 3M™ Scotch-Weld™ Structural Adhesives in Duo-Pak (DP) cartridges. Used with a compatible 3M EPX manual or pneumatic applicator, it simultaneously meters, mixes, and applies both adhesive components in a single operation, with no manual mixing required. The tapered tip can be trimmed to adjust bead size, and the used nozzle can be left in place on the cartridge as a protective seal for the remaining adhesive.
Key Features:
- Simultaneous metering, mixing, and application in one step
- Tapered tip can be cut to adjust bead size and placement precision
- Color-coded variants matched to Duo-Pak cartridge size and mix ratio
- Available in square and helical element designs
- Compatible with 3M EPX manual and pneumatic applicators
- Used nozzle doubles as a cartridge storage seal between uses
- For industrial and occupational use only
Typical Applications:
- Structural bonding in automotive, aerospace, and industrial manufacturing
- Two-part potting compound application in electronics and industrial assembly
- Maintenance, repair, and overhaul (MRO) bonding using 3M EPX applicators
- In-field service and assembly where consistent mix quality is required
Technical Specifications
Additional Information
3M™ Scotch-Weld™ EPX Mixing Nozzles
Precise mixing and placement for 3M™ Scotch-Weld™ two-part structural adhesives and potting compounds.
The 3M™ Scotch-Weld™ EPX Mixing Nozzle is a disposable accessory designed specifically for use with 3M™ Scotch-Weld™ Structural Adhesives in Duo-Pak (DP) cartridges. When attached to a Duo-Pak cartridge and used with a compatible 3M EPX manual or pneumatic applicator, the nozzle simultaneously meters, mixes, and applies both adhesive components in a single operation, delivering a thoroughly blended material at the point of application without manual mixing.
Nozzles are available in square and helical mixing element designs, with color-coded variants to match cartridge size and mix ratio. The tapered tip on each nozzle can be trimmed to adjust bead size for more precise placement. Once an application is finished, the used nozzle can be left in place on the cartridge as a protective seal for the remaining adhesive.
Simultaneous metering, mixing, and application in one step
Both adhesive components are metered to the correct ratio and blended as they pass through the nozzle, eliminating the need for separate mixing tools or manual preparation steps before dispensing.
Tapered tip for adjustable bead size and precise placement
The tapered outlet tip can be cut to the desired diameter, allowing operators to control bead width and improve placement accuracy for different joint geometries and application requirements.
Color-coded by cartridge size and mix ratio
Each nozzle variant is color-coded to its corresponding Duo-Pak cartridge format and mix ratio, making it straightforward to identify and select the correct nozzle for the adhesive being used and reducing the risk of mismatched accessories.
Designed exclusively for the 3M EPX applicator system
Engineered to exact fit and performance requirements for 3M EPX manual and pneumatic applicators. Using original 3M nozzles ensures consistent metering accuracy and reliable dispensing throughout the adhesive application process.
Used nozzle doubles as a cartridge storage seal
When dispensing is paused, the used nozzle can be left attached to the cartridge. The adhesive inside the nozzle cures and hardens, sealing the cartridge outlet and protecting the remaining material until the next use.
Available in square and helical element designs
Square element nozzles provide standard mixing performance for most structural adhesive applications. Helical element nozzles are suited to higher-viscosity materials and applications where more intensive mixing action is needed to achieve a uniform blend.
Typical Applications
- Dispensing 3M™ Scotch-Weld™ structural epoxy and acrylic adhesives in Duo-Pak cartridges
- Two-part potting compound application in electronics and industrial assembly
- Structural bonding in automotive, aerospace, and industrial manufacturing
- Maintenance, repair, and overhaul (MRO) bonding using 3M EPX applicators
- In-field service and assembly where consistent mix quality is required
Why Nozzle Selection Matters for Structural Adhesive Quality
In two-part structural adhesive dispensing, consistent mixing at the correct ratio directly affects bond strength, cure completeness, and long-term durability. Using the correct nozzle for the cartridge format and adhesive type is a foundational step in achieving repeatable, reliable bond performance.
Prevent off-ratio bonds caused by incorrect mixing
Structural adhesives are formulated to perform at a specific mix ratio. Using a nozzle that does not match the cartridge format can result in off-ratio material that fails to cure fully, leading to weak bonds or latent failures in assembled parts.
Maintain adhesive performance with original 3M accessories
The 3M™ Scotch-Weld™ EPX Mixing Nozzle is engineered specifically for the EPX applicator system. Original accessories are designed to the tolerances required for consistent metering, helping to preserve the adhesive's rated mechanical properties in the bonded joint.
Reduce adhesive waste by sealing cartridges between uses
Leaving the used nozzle in place after dispensing creates a hardened seal that protects the remaining adhesive in the cartridge from moisture and air exposure, extending the usable life of partially used cartridges and reducing material waste.
Nozzle Types
The 3M™ Scotch-Weld™ EPX Mixing Nozzle is available in two mixing element configurations. Selection depends on the adhesive being dispensed, the cartridge size, and the required degree of mixing intensity.
Square Element Nozzle
Standard mixing performance for most structural adhesive and potting compound applications
The square element nozzle is the standard configuration in the EPX Mixing Nozzle range. It provides thorough mixing across a wide range of 3M™ Scotch-Weld™ structural adhesives and is available in color-coded variants for 48.5 mL, 50 mL, 200 mL, 400 mL, and 490 mL Duo-Pak cartridges at 1:1, 2:1, and 10:1 mix ratios. A low-waste variant is available for 490 mL cartridges.
Helical Element Nozzle
Enhanced mixing action for higher-viscosity adhesives and applications requiring more thorough blending
The helical element nozzle provides a more intensive mixing action compared to the square element design, making it well suited to higher-viscosity two-part adhesives and potting compounds where thorough component blending is critical. Available for 200 mL, 400 mL, and 490 mL Duo-Pak cartridges at compatible mix ratios.
Variants and Compatibility
Select the nozzle variant that matches your Duo-Pak cartridge size and mix ratio. Color coding is used to differentiate variants. Always confirm the nozzle is specified for the adhesive and cartridge being used before dispensing.
| Nozzle Type | Color | Cartridge Size | Mix Ratio | Pack Size | Notes |
|---|---|---|---|---|---|
| Square | Green | 48.5 mL / 50 mL | 1:1 and 2:1 | 36 nozzles/case | For small-format Duo-Pak cartridges |
| Square | Gold | 200 mL / 400 mL | 1:1 and 2:1 | 36 nozzles/case | For standard and large Duo-Pak cartridges |
| Square | Orange | 45 mL | 10:1 | 36 nozzles/case | For 10:1 ratio small-format cartridges |
| Square | Green (Low Waste) | 490 mL | 10:1 | 36 nozzles/case | Low-waste variant for large-format cartridges |
| Helical | White | 200 mL / 400 mL | 1:1 and 2:1 | 36 nozzles/case | Enhanced mixing for higher-viscosity adhesives |
| Helical | Orange | 490 mL | 10:1 | 36 nozzles/case | For large-format 10:1 cartridges |
Applicator Compatibility
The 3M™ Scotch-Weld™ EPX Mixing Nozzle is designed for use with 3M™ Scotch-Weld™ Structural Adhesives dispensed from Duo-Pak (DP) cartridges via the 3M EPX applicator system, including the 3M™ EPX Plus II manual applicator and compatible 3M pneumatic applicators.
These nozzles are not interchangeable with 3M Static Mixing Nozzles (08193 / 08194) or with nozzles designed for 3M Concrete Repair cartridges. Always verify nozzle compatibility with the specific Duo-Pak cartridge and applicator being used before starting an application.
Storage and Maintenance Considerations
Correct nozzle handling between uses helps preserve adhesive quality, protect partially used cartridges, and maintain consistent dispensing performance across applications.
Sealing Cartridges Between Uses
- After dispensing, leave the used nozzle attached to the Duo-Pak cartridge outlet.
- The mixed adhesive inside the nozzle will cure and harden, forming a protective seal over the cartridge.
- When resuming use, remove the sealed nozzle and replace with a new one. Dispense a short purge bead before applying adhesive to the workpiece to clear the inlet and confirm correct mixing.
- Do not attempt to reuse a nozzle that has been used as a storage cap.
General Handling and Storage
- Store unused nozzles in a clean, dry location away from direct sunlight and sources of heat or moisture.
- Inspect the nozzle outlet before use to confirm the tip is clear and undamaged.
- Do not use nozzles that have been dropped, deformed, or contaminated.
- Dispose of used nozzles in accordance with applicable local regulations for adhesive waste.
Best Practices for Consistent Mix Quality
- Always match the nozzle color code to the Duo-Pak cartridge size and mix ratio. Using an incorrect nozzle can result in off-ratio material and reduced bond performance.
- Dispense a short purge bead at the start of each application session to prime the nozzle and verify mixing before the adhesive reaches the workpiece.
- Replace the nozzle any time the application is interrupted long enough for the adhesive inside the nozzle to begin curing.
- For fast-curing or high-viscosity adhesives, minimize idle time after attaching a new nozzle to prevent premature curing inside the mixing elements before the application is complete.
- Use original 3M nozzles to maintain the metering accuracy and dispensing consistency specified for 3M Scotch-Weld adhesive systems.