From plastic to adhesives

Every process requires accuracy


Underbody Coating

Precise dosing for optimum corrosion protection

UBC (Underbody Coating)

In the automotive industry, effective and long-lasting corrosion protection is essential for the vehicle body and underbody areas where adhesives, sealants, and insulating materials are applied with the highest precision. When sealing transition areas such as adhered joints and welded seams before painting, absolute accuracy is required otherwise water may penetrate the finished vehicle interior. In addition, sealants and protective layers (to protect painted surfaces against stone chips, etc.) must be both visually appealing and robust.

Since these materials are often highly viscous and can be abrasive, the precise dosing of these substances presents a significant challenge. Traditionally, mechanical flow meters were used for these applications and required a high level of maintenance to keep them accurate. With no moving parts, the industry has moved towards Coriolis mass flow metering technology for maintaining accuracy, reducing maintenance overhead, and improving plant uptime.

 

 

Why Rheonik Coriolis flow meters for underbody coating?

 

  • Precision at any viscosity - Accurate measurement of highly filled and abrasive materials
  • Robustness - No moving parts, maintenance-free, no drift
  • Excellent zero-point stability - Ensuring constant dosing quantities
  • Wide pressure range - Can be used from low to high pressures
  • High turn-down - Adaptable for different dosing quantities
  • Extremely fast and high-precision dosing cycles - Ideal for modern manufacturing processes
  • Assurance Factor® - Permanent self-diagnosis for maximum process reliability
  • Compact design - Ideal for applications with limited space requirements

 

Typical flow rates for underbody coating
  • 0.3-10 g/s (up to 20 g/s)
  • 0.75-30 g/s (up to 45 g/s)
Precision and Reliability in Underbody Coating
 

Rheonik Coriolis mass flow meters provide a precise and reliable solution for underbody coating processes. Thanks to their robust design and advanced measurement technology, they enable exact control of material flow, even for highly viscous and solid-filled materials. These properties are crucial to ensure uniform layer thickness and flawless adhesion. In modern production lines, Rheonik flow meters contribute significantly to process optimization and efficiency enhancement. Their maintenance-free design, without moving parts, reduces downtime and ensures long-term operational reliability.

Furthermore, the high measurement accuracy allows for precise material dosing, minimizing material waste and reducing costs. Combined with a fast response time to changing process conditions, Rheonik Coriolis mass flow meters are the ideal choice for demanding applications in vehicle coating.

With their exceptional performance, Rheonik flow meters help maximize the quality and durability of underbody protection. They are designed for low to high-pressure ranges and ensure consistent performance under extreme conditions. The innovative Assurance Factor® technology guarantees reliable measurement at all times, preventing production failures and quality defects.

Rheonik Coriolis mass flow meters offer a future-proof solution for precise dosing in underbody coating processes. With their high accuracy, durability, and maintenance-free operation, they are the perfect choice for modern automotive production lines.