New Dual Cure Adhesive Ensures Reliability of High-Performance ADAS Cameras and LiDAR

As a longstanding partner to the automotive industry, Henkel is continuing to develop new adhesives for high-resolution camera designs that can focus with ever greater accuracy.

(PRESS RELEASE) DÜSSELDORF, 9-Jan-2023 — /EuropaWire/ — Henkel (ETR: HEN3), a German chemical and consumer goods company, has developed a new dual cure adhesive called Loctite 3296 for use in the assembly of advanced driver assistance systems (ADAS) sensors. The adhesive is designed to meet the demands of high-resolution camera designs that require precise focusing, as well as to ensure the reliability of ADAS cameras and LiDAR systems for driver safety. Loctite 3296 is part of Henkel’s range of active alignment adhesives for ADAS sensors, which are essential for precision and high sensor reliability. The adhesive provides a high cure depth after exposure to UV light and bonds well to aluminum and FR4. The active alignment assembly process, which allows for fine adjustment of optical components to ensure optimal focus before curing, is vital for achieving the required precision in ADAS sensor assembly.

“The ADAS camera and LiDAR modules perform safety-critical functions by assisting the driver to stay in control of the driving environment, thereby ensuring safety of all road users. ADAS sensors must provide high resolution images and perform with superior reliability in harsh environments for the lifespan of the vehicle,” said Rodrigo Aguilar, ADAS Business Development Manager at Henkel. “Thanks to their exceptional performance and stability as well as tailored chemistry for long-term durability, the new Loctite 3296 and recently-launched Loctite ABLESTIK NCA 3218 adhesives excel in these highly demanding contexts”, complements Andreas Niegemeier, Product Development Manager at Henkel.

Loctite 3296 and Loctite Ablestik NCA 3218, which was launched earlier this year, are both dual cure adhesives (UV & thermal) that meet a variety of assembly requirements through their respective adhesive performance characteristics. For example, Loctite 3296 provides a very high cure depth after only a few seconds of exposure to UV light and is designed to bond particularly well to aluminium and FR4. Loctite Ablestik NCA 3218, which has a grey colour for more efficient light blocking, is designed for assembly processes that require low post-cure temperatures, making it especially favourable for assembling components made of plastic. Both products deliver proven high dimensional stability after cure.

Loctite 3296 provides a very high cure depth after only a few seconds of exposure to UV light and is designed to bond particularly well to aluminum and FR4.

Innovative chemistry delivers performance and safety gains

Together, the new Loctite 3296 and Loctite Ablestik NCA 3218 represent the next generation of camera module adhesives. By leveraging the advantages of purely cationic epoxy adhesives, both products provide a high glass transition temperature (Tg) in combination with low and consistent shrinkage as well as high cure depths and thus are superior compared to conventional adhesives employing free-radical curing mechanisms like acrylates.

Both, Loctite 3296 and Loctite Ablestik NCA 3218 have been designed with greater emphasis on environmental responsibility and are fully EU REACH compliant. The adhesives are free of antimony, which is still used in many other adhesives as photo initiator and has recently been classified as dangerous due to its potential health hazards. Moreover, both adhesives are free of CMT or SVHC substances and do not contain any toxic ingredients.

To get more detailed & technical information of active alignment adhesive application, please visit our whitepaper of active alignment adhesive site, Automotive ADAS Camera White Papers – Henkel Adhesives (henkel-adhesives.com).

LOCTITE® is a registered trademark of Henkel and/or its affiliates in the USA, Germany and elsewhere.

About Henkel
With its brands, innovations and technologies, Henkel holds leading market positions worldwide in the industrial and consumer businesses. The business unit Adhesive Technologies is global leader in the market of adhesives, sealants and functional coatings. With Consumer Brands, the company holds leading positions especially in hair care and laundry & home care in many markets and categories around the world. The company’s three strongest brands are Loctite, Persil and Schwarzkopf. In fiscal 2021, Henkel reported sales of more than 20 billion euros and adjusted operating profit of around 2.7 billion euros. Henkel’s preferred shares are listed in the German stock index DAX. Sustainability has a long tradition at Henkel, and the company has a clear sustainability strategy with concrete targets. Henkel was founded in 1876 and today employs a diverse team of more than 50,000 people worldwide – united by a strong corporate culture, shared values and a common purpose: “Pioneers at heart for the good of generations.” More information at www.henkel.com

New Dual Cure Adhesive Ensures Reliability of High-Performance ADAS Cameras and LiDAR

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