Solders for the Automotive Industry – Durable Joints under Extreme Conditions
Custom LOT-TEK solder solutions for drivetrains, fluid systems and structural assemblies
The automotive industry demands exceptionally reliable joints – especially in systems exposed to high mechanical, thermal and chemical stress. With decades of experience, LOT-TEK provides advanced solders for the automotive industry that are engineered for critical joining tasks in drive units, fuel systems, exhaust assemblies, and fluid lines.
One prominent application is the hydrodynamic torque converter, where LOT-TEK solders are used to join guide vanes to the pump wheel, turbine wheel, and stator. This precisely manufactured assembly is essential for transferring engine power to the drive shaft efficiently and reliably – a core function in modern automatic transmissions.
LOT-TEK solder products are also widely used in fuel, brake, exhaust, coolant and air systems. Tubes are joined to each other or fitted with brackets, mounting flanges or end fittings via soldering or brazing. Our solutions are specifically optimized for joining materials such as copper, aluminum and stainless steel, which are standard in modern vehicle design.
For these applications, we recommend solder pastes, preforms and solder rings. These formats enable exact dosing, repeatable processing, and high compatibility with automated assembly lines. By integrating our solder materials, you ensure long-term mechanical strength and leak-free performance.
Reliable bonding for series production and next-generation vehicles
All LOT-TEK solders are engineered to withstand thermal cycling, aggressive media, and dynamic loads. Our alloys are used in high-volume production and meet international quality standards for corrosion resistance, thermal stability and material compatibility.
With the rise of electric mobility and new emissions technologies, soldering is becoming even more important in automotive systems. Components in power electronics, cooling systems and sensor applications require connections that are both electrically conductive and structurally durable.
Whether in hybrid modules, control units or sensor housings – LOT-TEK solders contribute to product safety and performance across every vehicle class. Our products are also used in mechanical tooling and mobility-related aerospace parts, demonstrating their wide-ranging suitability.
As your engineering partner, we don’t just supply materials – we help you define the right joining solution from alloy selection and geometry to customized formats for your assembly line.
Discover our industry focus areas or learn more about LOT-TEK’s expertise. For tailored solutions, feel free to contact our team directly.