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2K SELECTION GUIDE

2K SELECTION GUIDE
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How to Select the Best Two-Component Dispensing System

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Introduction With rising standards for dispensing of two-component (2K) materials, manufacturers must turn to products that are affordable, readily available, precise, and easy to use. Nordson EFD’s world-class 2K products lead the way in the dispensing of two-component epoxies, urethanes, and acrylics, as well as other adhesives and sealants. Nordson EFD provides a wide variety of static mixers, cartridge systems, meter mix valves, and more to fit every need in the dispensing of two-component materials. All of our products are subject to our rigorous quality assurance inspection, and our...

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Using a Cartridge If you’re using a cartridge, your system may include a dispense gun, cartridge, and mixer. Here are steps to help you select the best possible 2K cartridge system. Step 1: Select Your Cartridge Nordson EFD’s high-quality cartridge systems dispense a wide variety of two-component materials. These cartridges range from Side x Side and coaxial to our innovative u-TAH Universal Cartridge. Side x Side Cartridge u-TAH Universal Cartridge u-TAH® cartridges fit in professional caulking guns. They are the industry’s most effective and highest quality two-component cartridge...

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AF Air Free Pistons Our patented AF™ pistons come complete with airtight and leak-proof seals that ensure safe shipment and a long shelf life. Upon insertion, the pistons quickly eliminate any air left between the material in the cartridge system and the piston. Note: AF pistons are compatible with EFD Side x Side cartridge sizes 50mL, 200mL, and 300mL in 1:1 ratios. Our large side AF pistons are compatible with 50mL Side x Side cartridges in ratios 2:1,4:1, and 10:1. Nordson EFD’s 2K pistons also come in Solid Multi-seal, Solid with O-ring, and Multi-seal Pistons with a Prestaged Center...

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Nordson EFD’s 2K dispensers are compatible for use with our 2K cartridge systems and help speed up the application of 2K adhesives. The 2K dispensers work primarily with our Side x Side cartridges, in sizes 50mL to 1500mL, and our 380mL coaxial cartridge. 50mL Caulking Gun Conversion Kit When using a 50mL Side x Side 1:1,2:1,4:1, or 10:1 ratio cartridge, EFD offers an ergonomic manual dispenser for trouble-free, point-of-use dispensing. EFD’s versatile caulking gun conversion kit accepts most manufacturers’ 50mL cartridge systems in 1:1,2:1,4:1, and 10:1 ratios. Manual Dispense Guns...

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Step 4: Select the Appropriate Mixer for Your Cartridge Now that you know what type of cartridge you need, you can begin to select the best mixer for your application. This table will help you determine which mixers best match your cartridge. Cartridge Type Recommended Mixers Cartridge and Mixer Compatibility u-TAH Side x Side 380mL Select the Best Mixer for Your Cartridge Note: EFD provides an extensive offering of in-line pipe or tube mixers, which are used when bulk dispensing through meter mix equipment. * Series 160 includes 160, 160A, 160AN, 161, 161A, and 161AN ** Can only be...

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Step 5: Select the Best Mixer for Your Material Matching your specific material with the right mixer is critical. In general, if you’re mixing two materials that are very similar, you can select a short mixer because they will be easy to mix. But if your two materials are very different, or if the ratio itself varies widely (for example, 1 part of material A to 4 parts of material B), then you need to select a longer mixer. The material itself also matters. Acrylics and epoxies obviously have different material characteristics than silicones and urethanes. Important: Choose the higher...

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Nordson EFD offers a wide variety of static mixers, including square OptiMixers and Turbo mixers or round Spiral mixers. It’s important to note, you should always use an OptiMixer or Turbo unless your application requires elements with a small diameter or long reach. How OptiMixers Work Using proprietary flow simulation technology, EFD improved the design of cross flow inverters and element wedges to develop OptiMixer™. This mixer optimizes mix performance in a significantly shorter length. How Turbo Mixers Work Our Square Turbo™ mixers’ alternating left and right-hand elements provide more...

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If you’re using a meter mix valve, your system may include a valve, mixer, and accessories. Here are steps to help you select the best possible 2K meter mix system. Step 1: Select the Best Spiral Mixer for Your Material See page 7, Best Mixer for Your Material. Keep in mind, when using a meter mix system, you must use spiral mixers. Step 2: Select the Best Spiral Mixer for Your Material Viscosity See page 7, Best Mixer for Your Material Viscosity. Material viscosity will help determine the type of spiral mixer you need. Step 3: Select Your Meter Mix Valve Nordson EFD’s meter mix valves are...

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Step 4: Select Your Valve Seal (for pneumatic valves only) If you’re dispensing with a Series 400 or Series 450 pneumatic meter mix valve, you’ll need to select the correct seal based on the type of material being dispensed. EFD offers a wide variety of seal configurations. Select both the O-ring and U-cup seals based on chemical compatibility. Recommended Valve Seal by Material Type O-Rings Model/Color Recommended for Contact With Mixer Diameter = Standard vs. High Flow Effective Ratio = 1:1 or Wide Ratio 'Effective Ratio is determined by multiplying the mix ratio with the component...

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Step 6: Select Your Handle (for pneumatic valves only) Nordson EFD offers electric or pneumatic handles for actuating the air cylinder of the valve. These handles feature an ergonomic design, which make handheld applications easier to execute. C hoose from two types of electric handles: 1. Pistol grip handle with pneumatic switch 2. Pistol grip handle with electric momentary switch (24 V) 3. Pistol grip handle with electric push on/off switch (24 V) Keep in mind if you’re using an electric handle, a solenoid from an outside vendor is required. We also offer a pistol grip handle with a...

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