Light-weighting in the automotive components market is one of the many challenges facing the automotive industry. Reducing vehicle weight increases engine performance and fuel efficiency/battery range - which are critical industry indicators in today’s automotive world.
As a result, newer, thinner and stronger materials such as multi-phase steels are replacing traditional micro-alloyed and heat-treated steels. Recently, zinc-coated steels and aluminum are being introduced for corrosion protection in chassis, frames, and other welded components applications.
Further challenges brought on by light-weighting focus on welding, stiffness, vibration and noise. Additionally, the pretreatment requirements for different composition welded materials are being challenged.
A neutral descaler is an innovative and successful material introduced to address specific challenges associated with metal pretreatment and electrocoating of single metal or mixed metal lines. A neutral descaler improves phosphate coverage on welds and heat affected zones resulting in increased paint adhesion and overall corrosion protection while allowing the use of zinc-coated and aluminum substrates.
This presentation demonstrates the application process and performance enhancements gained by using a neutral descaler. Additionally, phosphate coverage in and near weld areas on different substrates will be reviewed along with the adhesion and corrosion protection advantages.