Durable, Easy Clean Hard Coat for Metal Surfaces

With variants for highly polished metal and brushed metal TPD500 can make most metal surfaces highly scratch resistant and easy to clean.

Scratch-Resistant, Easy-to-Clean Protective Coating for Metal Surfaces

TPD500 is a one-component solution forming a thin, highly transparent clear-coat on metal substrates. Based on nanotechnology, the optimized composition of the organic-inorganic matrix provides easy-to-clean properties with excellent scratch resistance. TPD500 is a ready-to-use formulation compatible with various application processes. TPD500 coating provides excellent cleanability, reducing the formation of stains, scratches, and fingerprints. The extremely thin TPD500 (< 100 nm) coating is highly durable to chemical and environmental exposure, including high humidity, salt corrosion, UV-light, and temperature changes, without degradation of performance.

Main Applications

• Electronic casings (i.e. notebooks etc.)
• Faucets
• Kitchen appliances


• Very good easy-to-clean properties and excellent finger sliding properties
• Extremely high abrasion resistance and environmental durability
• High temperature stability
• High hardness
• Easy applicable single-layer coating
• Optically clear

Technical Background

The TPD coatings eliminate cosmetic distractions such as scratches, fingerprints and degradation due to environmental conditions. The ultra-thin coatings furthermore enhance the touch feel of metal surfaces. Optitune’s patented siloxane nanomaterials result in a matrix, where the chemical functionality is controlled on the molecular level yielding a homogeneous and durable coating structure.

How to Apply

Typical application process for TPD is spray or dip coating followed by thermal curing. Surface should be free from dirt and grease before applying the coating. TPD formulations designed for other coating processes such as slot and roller techniques are available upon request. Both IR and convection oven heating are suitable for thermal curing.