Home Decorative coating

colored metal parts

Prestige decorative coatings

For over 25 years, the Thermilyon Group has been mastering vacuum deposition processes. Today, we're putting this know-how to work for you, bringing color and brilliance to your parts and products while respecting the environment.

Request a quote

Add color to your projects with decorative coatings

Vacuum deposits have been recognized for years for their anti-wear, anti-corrosion and anti-seize properties on a wide range of materials.

In addition to their functional properties, our PVD (Physical Vapor Deposition) coatings are also used for aesthetic purposes.

Our THERMI-PLATiN site has been mastering this activity since 1996, making us an experienced player.
Thanks to our expertise and depending on the cladding chosen, it is possible to achieve a varied palette of colors ranging from deep black to elegant gray, through precious hues such as gold, pink, bronze or even mauve, not forgetting silver.

To enhance the aesthetics of your products, a range of finishes is available: brushed, matte or satin, to suit your needs and inspiration.

Produced in an ultra-thin layer, the PVD process does not alter the geometry of the part and is suitable for a wide range of applications, including:
- Fittings
- Watchmaking
- Jewellery
- Tableware and cutlery
- Perfumes and cosmetics
- Wines and spirits
- Any metal substrate

THERMI-PLATiN's innovative solutions bring elegance, durability, aesthetics and unrivalled performance to your products and packaging, in line with your brand image.

Read more

Colour chart of available decorative coatings

What is the PVD process?

An eco-responsible coating method

The aim of vacuum deposition is to deposit extremely hard, thin layers on the surface of treated parts at very low pressure, thereby improving their performance and lifespan.

The PVD (Physical Vapor Deposition) process is carried out at between 200°C and 450°C to form a metallic vapor which is then deposited on parts. This method can be used on a wide range of materials, and is an eco-responsible alternative to electrolytic surface treatment processes, electroplating and anodizing.

Why choose Thermilyon decorative coatings?

Innovative, aesthetic, durable and functional coverings.

personalization

Closer to your brand

The PVD process enables us to produce a wide range of shades (Pantone standard). A range of finishes (matte, gloss, satin, brushed, etc.) can be achieved, depending on your projects and the desired effect.

Sustainability & eco-responsibility

Greentech process

PVD coatings are produced at lower temperatures than other processes (between 200 and 450°C). Our processing machines are powered by green electricity, without using or releasing pollutants.

functionalities

Improve your products

In addition to their aesthetic and decorative aspects, vacuum deposits improve the performance of coated parts: resistance to wear, scratches and corrosion.

Innovation

A pioneering spirit

For over 60 years, the Thermilyon Group has been developing a genuine culture of innovation to offer its customers the best technologies.

Our decorative PVD coating solutions

Warm colors
Cool colors
Gold and yellow

A range of coatings from gold to pale yellow

Roses

A biocompatible rose shade

Silver

Metallic grey coatings for a chrome and silver effect

Black

Add elegance with sober coverings, from deep black to elegant anthracite.

Bronze and violet

A range of coatings with bronze highlights, up to eggplant violet.

10

customizable colors

9

deposit machines

2

analysis laboratories

25

years of experience in vacuum deposition

Our certifications

ISO 13485
ISO 13485 certification logo

ISO 13485 establishes the criteria for the quality management system of an organization providing medical devices and related services in compliance with customer requirements and applicable regulations.

Read more

ISO 9001

The ISO 9001 standard, widely recognized throughout the world, helps organizations improve their performance by meeting quality management system requirements and demonstrating a commitment to customer satisfaction.

Read more

PVD titanium nitride-coated decorative elements
Platinum-coated cutting tools
technician loading parts into a vacuum deposition furnace for DLC coating

    Our FAQs

    What is vacuum deposition?

    Vacuum deposition is a surface treatment used to deposit a material or alloy on a mechanical part.

    The use of vacuum technology ensures a perfectly clean, non-polluting process.

    It is not subject to REACH legislation.

    How do I choose the right deposit method?

    The deposition method depends above all on the nature of the coating to be deposited and the substrate.

    If the substrate cannot be heated to high temperature, the deposition must be carried out using low-temperature technology.

    If the coating to be deposited consists of a solid element (metal or graphite target), a physical process such as PVD is used. If the coating consists of a gas or liquid, a chemical process such as CVD or PACVD is used.

    What are the advantages of PVD technology?

    This process greatly increases resistance to wear, abrasion, friction and corrosion. As a result, component life is greatly extended.

    Standard thicknesses are of the order of 3µm and deposition is carried out on finished parts.

    What's the difference between PVD and PACVD?

    PVD is physical vapor deposition. The element to be deposited is obtained by evaporation or sputtering via a physical process. PACVD is plasma-assisted chemical vapor deposition. The element to be deposited is obtained from chemical reactions. Plasma enables this chemical reaction to take place at lower temperatures.

    What do I need to know when consulting a customer or placing an order for vacuum deposits?

    Nature of steel or carbide, if steel treated, please specify the treatments carried out. Desired characteristics (hardness), quantities of parts per shipment and per year, drawings of the part and specifications. If possible, how the part will be used and its final purpose.

    See all FAQs

    Do you have a question or a need?

    Our teams will study the most appropriate solutions for your project.

    Contact us

    Our latest news

    Discover our articles on heat treatment and vacuum deposition.

    man on a car parts assembly line
    Heat treatment and part lightening: what solutions for the automotive industry?
    Today, lightweighting is a strategic lever for the automotive industry, at the crossroads of environmental, technological and economic challenges. Meeting these challenges without compromising the mechanical performance of components requires perfect mastery of heat and surface treatments. Why is lightweighting a key issue for the automotive industry? Regulatory and economic pressure [...]
    June 2, 2025
    Heat treatment and part lightening: what solutions for the automotive industry?
    image of a red leather belt with a metal buckle to illustrate PVD treatments for the luxury and decorative sectors
    PVD treatment: a revolution for the luxury and decorative sectors
    In a world where aesthetics is a fundamental criterion, the luxury and design industries are looking for technical solutions capable of enhancing their creations while guaranteeing durability and precision. PVD treatments, once the preserve of technical fields such as aeronautics and medicine, are now becoming a strategic asset in the most [...]
    May 16, 2025
    PVD treatment: a revolution for the luxury and decorative sectors
    impact of medical certifications on heat treatment
    What is the impact of heat treatment certification in the medical sector?
    In the medical sector, every component, every device, every material is subject to stringent requirements. When it comes to heat treatment, these requirements are not limited to surface quality or mechanical resistance. They encompass traceability, process reproducibility and compliance with international standards. This is where [...]
    May 7, 2025
    What is the impact of heat treatment certification in the medical sector?
    aeronautical supply chain challenges in île-de-france
    The challenges of the aeronautical supply chain in the Paris Region
    Aeronautics is one of the world's most demanding sectors, and the Paris Region is one of its most dynamic industrial hubs. At the crossroads of innovation, precision and performance, the region's aeronautical supply chain plays a key role in the competitiveness of the French industry. To meet the needs of manufacturers [...]
    April 15, 2025
    The challenges of the aeronautical supply chain in the Paris Region
    Electric car being charged
    Mechanical components of an electric car
    Electric cars have profoundly transformed the automotive industry by rethinking traditional mechanical principles. Unlike internal combustion vehicles, which rely on a combustion engine, these vehicles run on an electric motor powered by a battery. This change has led to a major evolution in the design of mechanical components, which must be adapted to the new [...]
    March 4, 2025
    Mechanical components of an electric car
    aged steel tube
    What does alloy ageing involve?
    Alloy ageing is a widespread phenomenon in the metallurgical industry. Whether used in the aeronautics, automotive or other high-tech sectors, metal alloys evolve over time under the effect of various factors such as temperature, mechanical stress and the environment in which they are exposed. This transformation can be beneficial to the [...]
    March 4, 2025
    What does alloy ageing involve?