Henkel Unveils Loctite AA 5885: Rapid-Cure Gasketing Sealant Revolutionizing Automotive Electronics

Henkel Unveils Loctite AA 5885: Rapid-Cure Gasketing Sealant Revolutionizing Automotive Electronics

(IN BRIEF) Henkel has introduced Loctite AA 5885, a 1K polyacrylate UV-curable gasketing sealant designed for automotive electronics applications. Optimized for Cured-in-Place Gasketing, the product offers excellent resistance to automotive fluids, high temperatures, and harsh conditions. It features rapid curing in as little as 30 seconds and can be immediately compressed, making it ideal for complex parts and high-efficiency production environments. Compatible with aluminum and plastic, Loctite AA 5885 maintains consistent seal performance across a wide temperature range (-40°C to 150°C) and deflection range, while also supporting manufacturers’ sustainability efforts by reducing energy use and curing space.

(PRESS RELEASE) DÜSSELDORF, 3-Apr-2025 — /EuropaWire/ — Henkel has expanded its rapid cure gasketing sealant portfolio with the launch of Loctite AA 5885, a one-part (1K) polyacrylate UV-curable solution tailored for Cured-in-Place Gasketing (CIPG) applications in automotive electronics. As the industry shifts toward electrification, OEMs are increasingly incorporating sophisticated electronic components into vehicle designs. Loctite AA 5885 is engineered to secure electronic units against high temperatures, automotive fluids, and harsh environmental conditions. It is particularly well-suited for sealing multi-substrate applications where chemical resistance, uniform compressive stress, and serviceability are critical—such as in electronic control unit (ECU) module housings, engine and transmission control modules, fuse boxes, actuators, sensing systems, and ADAS modules.

According to Arthur Ackerman, Business Development Manager Auto Electronics, the new solution combines the robust chemical resistance of polyacrylate chemistry with the ability to maintain even compressive stresses over an extensive temperature range—a performance typically seen in traditional silicones. This makes Loctite AA 5885 ideal for demanding under-the-hood environments, especially in applications related to braking, power steering, and mechatronic systems.

Loctite AA 5885 is delivered as a liquid gasketing compound that achieves an effective seal through compression. Its unique flow characteristics allow for efficient, repeatable dispensing onto parts with complex geometries. Once applied, the formulation’s rapid viscoelastic recovery preserves high-aspect-ratio beads during the curing process. With its UV-active chemistry, the sealant cures in as little as 30 seconds and can be compressed immediately after curing, thereby streamlining production cycle times and boosting overall manufacturing efficiency.

This versatile material is compatible with various substrates including aluminum and plastic. It maintains its seal force over a wide deflection range and can operate in temperatures from -40°C to 150°C in both dry and high-humidity environments, while its softness helps increase tooling tolerances without overstressing the component. Moreover, Loctite AA 5885’s rapid curing not only minimizes energy consumption compared to other curing technologies but also reduces the required curing floor space—an advantage for manufacturers aiming to lower their environmental footprint.

Media Contact:

Sebastian Hinz
Adhesive Technologies
Media Relations
Headquarters, Düsseldorf/Germany
+49-211-797-8594
press@henkel.com

SOURCE: HENKEL