Henkel is launching two new one-component potting sealants with silicone-based Loctite SI 5035 and polyacrylate-based Loctite AA 5832.

The third new sealant solution is a two-component based Loctite PE 8086 AB, which combines thermal management with physical protection. These products are designed for seamless integration into the manufacturing process and optimal compatibility with the materials used in automotive applications, enabling more efficient encapsulation and protection.

“Henkel is meeting the evolving challenges of automotive electronics with a comprehensive range of potting solutions,” says Arthur Ackermann, business development manager of auto electronics North America at Henkel. “Utilizing our strong expertise and innovation capabilities, these new products have been developed in collaboration with our customers and partners to surpass industry expectations. They not only enable high efficiency, high-accuracy manufacturing, but also ensure the durability, longevity, and dependability of components over the vehicle’s lifecycle.”

Protecting against common moisture and fluid exposure – Loctite SI 5035
Loctite SI 5035is a one-part silicone sealant that provides corrosion-free potting to sensitive components, such as ECU connectors. As a flowable sealant, it offers the advantage of deep light cure capability, ultraviolet, and visibility combined with a secondary moisture cure mechanism for shadow curing. Loctite SI 5035 forms a medium-strength, flexible rubber sealant that can withstand high pressure testing immediately after UV curing.

The fast processing and excellent adhesion characteristics reduce the resource and space requirements on the manufacturing line. The UV cure system eliminates the need for energy intensive ovens that are common with typical heat cure systems. The fast depth of cure reduces the need for staging parts usually required with standard RTV silicones, significantly reducing process footprint on the plant floor.

A shield against transmission fluid and oil – Loctite AA 5832
Loctite AA 5832is a dual cure (UV/moisture) polyacrylate potting sealant that is designed for high-performance in sealing against automatic transmission fluids and oil. This one-component, low-viscosity material is used for potting and sealing various automotive and electronic components, such as ECU connectors, mechatronics, and ADAS components. Loctite AA 5832 also helps to reduce the equipment and manufacturing footprint, saving production space. It is cured using UV light, which in turn enables a lower energy consumption.

Enhancing thermal efficiency for peak performance – Loctite PE 8086 AB
Loctite PE 8086 AB is a thermally conductive potting material specially designed for encapsulation and protection of electronics components, such as motor stators, actuators, transformer coils, and transmission actuators from thermal shock. This two-component epoxy material offers high thermal conductivity and low mixed viscosity for easy processing, excellent electrical insulation at high and room temperatures, and Automatic Transmission Fluid (ATF) oil resistance.

Loctite PE 8086 AB maintains optimal operating temperatures to ensure peak performance and mitigates long term performance degradation due to high temperatures while protecting components from environmental factors, contaminants, and mechanical stress. As a solvent free product that produces no VOCs during the curing process, it enables more sustainable manufacturing. Loctite PE 8086 AB mitigates resource consumption as it uses less abrasive materials, reducing equipment wear and facilitating lower maintenance requirements.