High-performance battery systems have been among the key growth drivers in the power tools sector for years. As their use has become increasingly widespread in industry and the skilled trades, the demands on their resilience and service-life have also risen. For manufacturers of modern power tools, battery potting has therefore become a critical step in the production process. The WEVOPUR 512 FLE PU potting compound is a proven solution for implementing various battery designs.
Durability through mechanical decoupling
With a Shore A hardness of 80, this electronic potting resin offers sufficient strength to stabilise printed circuit boards and their components, as well as enough flexibility to provide vibration-damping properties and mechanical protection. Its viscoelastic properties and an elongation at break of approximately 100 per cent further enhance this effect.
The material has also demonstrated its damping performance in shake tests designed to simulate transport and operational stresses.
Excellent flow properties for reproducible battery potting
Once the resin and hardener have been mixed, Wevo’s two-component PU system has a viscosity of around 1000 mPa·s and offers excellent flow properties. The potting compound spreads quickly and evenly within complex geometries, fills cavities and minimises the risk of trapped air bubbles. This results in an efficient battery potting process, allowing the material properties that are essential for ongoing operation to take effect.
To ensure a high potting quality, Wevo optimises further process parameters on request – for example, to achieve precise cycle and processing times.
Reliable battery operation through specific material properties
To ensure the long-term functionality of the battery packs, WEVOPUR 512 FLE also offers optimised adhesion to all common plastics, good thermal conductivity (0.8 W/m·K), corrosion protection and flame-retardant properties in accordance with UL 94 (V-0 / 6 mm, V-2 / 1.5 mm).
Material expertise and application know-how from a single source
As a manufacturer of customised potting compounds, Wevo combines decades of materials expertise with a comprehensive understanding of applications and processes. On request, the company develops tailored polyurethane systems together with its customers. The formulation of WEVOPUR 512 FLE can be precisely adapted to suit the desired processing window. Combined with its further material properties, it offers a needs-based solution for both the power tools deployed in industry and construction as well as those used in the home and garden sector.
