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Nordson EFD u-TAH™ Cartridge System

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The u-TAH Cartridge looks identical to standard caulking cartridges. It is the only cartridge system that maintains accurate ratio control and fits into an existing 1/10th gallon or 310mL caulking gun. This system also fits into pneumatic (rod-driven) and battery-powered caulking tools.

The patented in-line design stores one component in front of the other but both are extruded through the cartridge outlet and into a static mixer simultaneously. Special non-vented versions are available to handle very low viscosity fluids. The cartridge is offered in a 1:1 ratio with 250mL volume, a 2:1 ratio with 180mL volume and a 10:1 ratio with 280mL volume. The cartridge body is either nylon or polypropylene construction that won’t burst during most demanding applications, providing trouble free applications in the field.

Features and Benefits
  • Accurate ratio control
  • After filling, maintains a superior shelf life
  • No need to purchase special-purpose dispensing guns
How The EFD u-TAH™ Cartridge System Works

The cartridge stores the two mixable components, one in front of the other. The rear piston is stationary. As the inner can is pushed forward, the orange fluid is extruded into the center tube, through the cartridge outlet, and into the mixer. At the same time, the movable piston causes the blue fluid to be extruded through the cartridge outlet and into the mixer. The cartridge in the diagram shows a 1:1 ratio, although a 2:1 ratio cartridge is also available. With the 2:1 cartridge, the stationary piston and inner cartridge have a smaller diameter and cross sectional area.

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Item #


Mix Ratio



7702982 Vented 1:1 250 mL Polypropylene
7704040 Vented 1:1 250 mL Nylon
7702988 Non-Vented 1:1 250 mL Polypropylene
7702991 Vented 2:1 180 mL Polypropylene
7702994 Non-Vented 2:1 180 mL Polypropylene
7702996 Vented 10:1 280 mL Nylon
  Results 1 - 6 of 6 1 
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