Functional Coatings (Anti-Corrosion, Anti-Scratch, Thermal Barrier)
A broad category of engineered surface treatments providing specific performance functions including corrosion protection, scratch resistance, and thermal barrier properties.
Overview
Functional coatings are engineered surface treatments designed to impart specific performance characteristics beyond aesthetics. Key categories in automotive use include: anti-corrosion coatings (wax injections, underbody stone-chip protection, zinc-rich primers); anti-scratch coatings (hard clearcoats, DLC – diamond-like carbon, ceramic nano-coatings on interior and exterior plastics); and thermal barrier coatings (TBCs) used on pistons, exhaust manifolds, and turbocharger housings to reduce heat transfer into the engine structure, improving efficiency. Ceramic-based TBCs based on yttria-stabilised zirconia (YSZ) are common in diesel and high-performance engine applications.
Automotive Applications
Similar Materials
Zirconium
Refractory Metal
Zirconium is a lustrous, silver-grey transition metal known for its exceptional corrosion resistance and high melting point. In the automotive industry, it is utilized both as a pure metal for specialized coatings and in the form of zirconium dioxide for high-performance ceramic components.
Kaolin
Aluminium Silicate Clay
A naturally occurring soft white clay mineral used as a filler, coating agent, and functional additive in automotive components.
Powder Coatings
Surface Coating
A solvent-free, electrostatically applied dry coating system that is cured under heat to provide durable, high-quality finishes on automotive components.
Aluminium-SiC MMC
Metal Matrix Composite
Aluminium metal-matrix composite reinforced with silicon carbide, used for brake discs, drums and pistons.
Properties
Category
Type
Functional Surface Coating
Available Colors
Available Forms
Key Properties
- Targeted functional performance
- Corrosion protection
- Scratch and abrasion resistance
- Thermal insulation
- Low friction (DLC)
- Thin film application
Technical Specifications
Temperature Resistance
Up to 1,400°C (YSZ thermal barrier)
Sustainability
Sustainability Rating
TBCs improve engine thermal efficiency, reducing fuel consumption and emissions. Anti-corrosion coatings extend vehicle lifespan.