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Digitally Printing Adhesives with Inkjet

Ben Hartkopp

Adhesives are foundational to modern manufacturing — yet they're still applied with mechanical defined, imprecise dispensing methods that limit design complexity and throughput. In this webinar Quantica founder Ben Hartkopp shows how NovoJet™ jets high-viscosity adhesives (up to 250 mPa·s) with full digital control. Includes two case studies — an epoxy for fuel cell stacks and a methacrylate for e-motor lamella sheets — plus how the same approach extends to coatings, encapsulations, and other functional materials.

Key takeaways:

  • High-viscosity adhesives (up to 250 mPa·s) can now be jetted directly with NovoJet™
  • Digital deposition replaces single-nozzle dispensing — enabling full coverage and precise patterns
  • Case studies: Henkel Loctite epoxy (fuel cell stacks) and Kisling methacrylate (e-motor sheets)
  • Rheology insights: viscosity, temperature, shear rate, surface tension
  • Applications extend to coatings, encapsulations, thermal interface materials, viscous resins, and particle-loaded fluids
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Overview

Adhesives are the backbone of modern assembly — and inkjet is finally ready for them. Until now, high-performance adhesives have been confined to analog dispensing methods because their viscosities (often well above 250 mPa·s) put them beyond the reach of conventional inkjet, which struggles past 50 mPa·s. Quantica's NovoJet™ Printhead changes that, opening a digital path for the materials that hold modern products together.

Two real-world adhesives, two demanding industrial applications. The session walks through Quantica's evaluation of an epoxy-based Henkel Loctite for fuel cell stack sealing and a methacrylate-based Kisling adhesive for e-motor lamella stacks. Each material brings different chemistry, curing mechanism (UV vs thermal), viscosity range, and process sensitivity — and each was successfully tuned for stable jetting through temperature and shear-rate control.

The rheology principles apply far beyond adhesives. NovoJet™'s ability to jet high-viscosity functional materials extends to coatings, encapsulations, thermal interface materials (TIMs), viscous resins, and particle-loaded fluids. The webinar closes by mapping the same temperature, viscosity and shear-rate framework onto these adjacent material classes — and what it means for manufacturers exploring digital, scalable production.

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