Air-driven dual pistons ensure accurate mix ratio throughout the dispense stroke

Compressed air drives both plunger rods simultaneously and with equal force into the Duo-Pak cartridge, maintaining the correct volumetric ratio of both adhesive components from start to finish of each dispense cycle. This eliminates ratio drift that can occur with manual applicators at higher viscosities or toward the end of large cartridges.

Integrated regulator provides fine control over dispensing flow rate

An integrated air pressure regulator allows the operator to adjust dispensing flow rate directly at the applicator without modifying the shop air supply. This enables fine-tuning to match the viscosity of the specific adhesive being dispensed and the bead size required for the application, improving consistency across different adhesive formulations.

Precision drip-free dispensing reduces waste and surface contamination

The applicator incorporates a drip-free dispensing mechanism that stops adhesive flow as soon as the trigger is released. This prevents unintended adhesive deposition between dispense cycles, reducing material waste, keeping the work area and adjacent surfaces clean, and improving bead placement accuracy in precise assembly tasks.

Immediate maximum pressure with no power lag

Unlike electric or battery-powered dispensers, the pneumatic applicator reaches full operating pressure instantly when the trigger is engaged. There is no warm-up period or lag before the adhesive begins flowing, enabling fast cycle times and consistent bead starts in high-pace production environments.

Ergonomic pistol grip for comfortable, precise handling

The pistol grip design provides comfortable handling during extended production use and gives the operator precise control over bead placement and trigger actuation. The balanced body reduces wrist strain during sustained dispensing tasks on assembly lines or in manufacturing cells where the applicator is in continuous use across a shift.

Three cartridge size variants for scalable production coverage

Variants are available for 50 mL, 400 mL, and 490 mL Duo-Pak cartridges, allowing the pneumatic applicator system to be matched to the adhesive volume requirements of different processes. Universal tray compatibility with the 3M manual applicator range also allows trays to be shared across both dispensing systems on the same production floor.

Consistent ratio delivery regardless of adhesive viscosity

High-viscosity two-component adhesives can be difficult to dispense manually at a consistent rate, particularly toward the end of large cartridges. Air-driven pistons apply constant, regulated force independent of operator effort, ensuring the correct ratio is maintained across the full dispense stroke regardless of adhesive stiffness or cartridge fill level.

Reduced operator fatigue in sustained production use

Manual dispensing of large or high-viscosity cartridges over a full production shift places significant repetitive strain on operators. The pneumatic applicator transfers the dispensing effort to the compressed air system, allowing operators to focus on accurate bead placement without physical fatigue accumulating over the course of the shift.

Faster cycle times improve throughput on production lines

The instant pressure response and consistent flow rate of the pneumatic applicator allows operators to dispense adhesive beads faster and with greater repeatability than manual applicators, particularly for larger cartridge formats. This supports higher cycle frequencies without sacrificing bead consistency or ratio accuracy between parts.

Pneumatic Application Gun — 50 mL, 1:1 and 2:1

For 48.5 mL and 50 mL Duo-Pak cartridges; supports 1:1 and 2:1 mix ratios

This variant is designed for use with small-format 48.5 mL and 50 mL Duo-Pak cartridges at 1:1 and 2:1 mix ratios. It brings the consistency and drip-free control of pneumatic dispensing to precision bonding, potting, and assembly applications where lower adhesive volumes are used per cycle. The pistol grip and integrated regulator provide fine dispensing control suited to tight joint geometries and precise material placement tasks.

Pneumatic Application Gun — 400 mL

For 400 mL Duo-Pak cartridges; suited to medium to higher-volume structural bonding on production lines

This variant is designed for 400 mL Duo-Pak cartridges and is the primary choice for medium to high-volume structural bonding in production environments where adhesive is dispensed continuously or in high cycle frequency. Supports 1:1 and 2:1 mix ratio cartridges, with conversion kits available for additional mix ratios. The universal tray design is also compatible with 3M EPX manual applicators, allowing shared cartridge handling across both dispensing systems.

Pneumatic Application Gun — Black, 490 mL

For 490 mL Duo-Pak cartridges at 10:1 mix ratio; suited to large surface and high-volume bonding applications

This large-format variant is designed for 490 mL Duo-Pak cartridges at a 10:1 mix ratio, covering applications where higher adhesive volumes are dispensed per cycle or per shift. Typical uses include large surface lamination, panel bonding, and production applications using 3M Scotch-Weld adhesive formulations available in the 490 mL cartridge format. The black body finish distinguishes this variant from other applicators in the EPX range for easy identification at the workstation.

3M™ Scotch-Weld™ EPX Mixing Nozzles (sold separately)

Mixing nozzles are required for use with all EPX Pneumatic Applicator variants and are not included. Original 3M Scotch-Weld EPX Mixing Nozzles are available in square and helical element designs, color-coded to match cartridge size and mix ratio.

• Square element nozzles for standard mixing performance across most formulations
• Helical element nozzles for higher-viscosity adhesives requiring more intensive blending
• Color-coded by cartridge size and mix ratio for easy identification at the workstation

Plunger Conversion Kits

Conversion kits for the 400 mL variant allow the applicator body to be reconfigured for additional mix ratio cartridges without requiring a separate applicator for each adhesive formulation.

• Available for 1:1, 2:1, 4:1, and 10:1 mix ratios
• Use only original 3M plungers to maintain ratio accuracy during dispensing
• Confirm plunger compatibility with your specific cartridge size before ordering

Safe Handling During Operation

• Refer to the Safety Data Sheet (SDS) for the specific 3M Scotch-Weld adhesive being dispensed before starting work. Structural adhesives may require gloves, eye protection, and adequate ventilation.
• Do not point the nozzle at people or direct dispensed adhesive toward skin or eyes during or after operation.
• Connect the applicator only to a clean, dry, regulated compressed air supply within the pressure range specified for the applicator. Overpressure can damage the applicator or cause uncontrolled adhesive flow.
• Disconnect the air supply before loading or removing cartridges and before performing any maintenance on the applicator.
• Dispense a short purge bead onto a waste surface at the start of each session before applying adhesive to the workpiece.
• For industrial and occupational use only. Not for consumer sale or use.

Maintenance and Storage

• After each use, leave the mixing nozzle in place on the cartridge to seal the outlet and protect the remaining adhesive. Replace with a new nozzle and purge before resuming dispensing.
• Inspect the plunger rods and piston seals for adhesive contamination or wear before each use. Contaminated or damaged seals can affect ratio accuracy and should be replaced.
• Check that the correct plunger is installed for the cartridge mix ratio before loading a new cartridge.
• Drain condensation from air lines and filters regularly to prevent moisture from entering the applicator and affecting piston performance.
• Store the applicator in a clean, dry location with the air supply disconnected when not in use. Do not store with a loaded cartridge under pressure.