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Coherix Inline Glass Primer Inspection

Robust, Real-Time, Compact, and Proven.

Coherix PrimerMaster™ provides a complete in-line inspection and process control solution with 100% part traceability for the primer dispensing process. Benefits include assurance of properly dispensed primer, minimized production down time caused by robot re-programming, product quality improvement, and preventing failure pass-through. Coherix PrimerMaster is a rugged, reliable, and on-the-fly inspection solution that ensures properly dispensed primer without slowing down the production process.

The correct application of primer is critical to the automotive glazing process to ensure urethane adhesion to the glass, as windshield retention is imperative to the overall safety of the vehicle. Coherix PrimerMaster provides the most advanced machine vision solution, enabling customers full part traceability to easily identify a population of parts and reduce the costs of potential recalls.

Embedded with Coherix proprietary solution software, Coherix PrimerMaster provides real-time information on primer and isopropyl alcohol width and location, and detects skips with no external computer required. It is not affected by ambient lighting changes, yielding robust operation where traditional inspection camera techniques fail. With 100% inspection of primer, Coherix PrimerMaster can provide just-in-time tip changing indication, which optimizes the life of the dispensing tip and reduces operating expenses.

Product Features

  • Self-contained, around-the-nozzle solution
  • Quick and easy setup
  • Robot carried or pedestal mounted
  • Robust inspection of isopropyl alcohol
    and primer location relative to part
  • Inspection of primer application 400 times per
  • Configurable reporting and displays
  • 100% part traceability with flexible archiving options
  • Impervious to ambient lighting and part color changes
  • Inspects primer in any direction without blind corners
  • Automatic adaptation to robot speed changes
  • No added complexity in robot programming
  • Rugged and crash-resistant, IP67 construction for sealed operation
  • No moving components
  • Large storage options (up to 1TB SSD)
  • Easy maintenance



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Once and done

Single-pass primer profile inspection is accomplished using four high-speed laser sensors surrounding the dispensing nozzle to track and inspect the primer in any direction without blind corners. Acquiring and processing 400 samples per second,  Coherix PrimerMaster has the industry-leading acquisition speed, avoiding production slow-downs.


The Coherix PrimerMaster leverages Coherix Shark™ 3D high-speed imaging and processing platform which has proven reliability, inspecting millions of customer parts to date. In addition, Coherix technology has been widely deployed for bead inspection for numerous applications including powertrain RTV, body shop structural adhesive and sealants, final assembly urethane glass, battery thermal paste and more with OEM and Tier suppliers globally.

Easy to integrate

Coherix PrimerMaster mounts around the shaft above the primer applicator head. It communicates easily with your dispenser or robot. Coherix Inline Glass Primer Inspection does not add complexity to robot programming. There are no time-consuming set-up changes required for robot speed changes commonly required with other machine vision systems.


The Coherix PrimerMaster sensor is built with a solid aluminum frame to withstand impacts and IP67 sealed housing that protects the unit in a production environment. There are no moving parts and Coherix PrimerMaster is the online system that stays online.


5 Year Warranty on Adhesive Inspection