Coating Service

THIN FILM COATING SERVICE

From prototypes to series production, we deliver reliable
PVD thin film coatings – supported by process
expertise and documented quality control.

THIN FILM COATING SERVICE

Experts in coatings and substrate materials

Polyteknik is a specialised thin-film coating partner with more than 30 years of experience in PVD deposition.

We support your project from early development and proof-of-concept to pilot runs and repeatable series production. Always with robust quality control and clear documentation.

Let’s talk about how
we can help you

P: +45 9689 2800

Thin film coating service, we do the coating for you

Our in-house coating services give you access to advanced PVD capabilities without investing in equipment.
We help you select the right coating for your functional targets and substrate, then run a controlled, repeatable process.
From prototypes to high-volume production.

PVD thin film coatings (subcontract service)
Coatings for: EMI shielding, electrodes, optical mirrors / reflectors
Internal tube coating and complex geometries
Prototype, pilot test, and series production workflows
Science and advanced research projects
Support: coating selection and process advice

OUR AREAS OF EXPERTISE

EMI shielding

EMI Shielding

Electrodes

Reflector and mirror coatings

Internal tube coating

Science

Deliveries to science facilities

We have worked closely with universities and educational institutions through more than three decades and have contributed to major scientific projects worldwide.

They range from recoating 8-meter telescope mirrors for the European Southern Observatory’s VLTs, to developing in-situ mirror cleaning solutions for the ITER fusion reactor and delivering highly uniform conductive metal coatings for beam-line kicker chambers.

Our coating workflow – from idea to series production

Every coating project is different. That is why we follow a structured, collaborative workflow that ensures the right coating solution, reliable performance, and repeatable quality.

Define requirements

We start by understanding your application, substrate material, operating environment etc. Based on this, we recommend suitable coating materials and deposition processes.
Proof of concept

We coat sample parts for initial testing and evaluation. Together with you, we verify functional performance such as electrical properties, optical behaviour, adhesion, and thickness to confirm the coating concept.
Pilot production

A smaller batch is produced to validate repeatability, process stability, and quality control methods. Any necessary adjustments are implemented before scaling.
Series production

Once approved, we move to controlled series production. We can support anything from small recurring batches to high-volume production, with documented quality control and consistent output.

Why PVD Technology is the Right Solution for Coating Products

Physical Vapor Deposition (PVD) is a sophisticated vacuum-based coating technique that enables the application of thin, durable, and highly precise films on a wide range of substrates. Compared to conventional coating methods like spray or paint, PVD offers superior control over film thickness, composition, and adhesion, making it an ideal choice for applications demanding high performance and precision.

How PVD Technology Works

In PVD (Physical Vapor Deposition), coating material is physically vaporized and deposited onto a target substrate under vacuum conditions. One of the most widely used techniques within PVD is sputtering, where energetic ions—typically from a plasma—bombard a solid target material, causing atoms to be ejected (or “sputtered”) from its surface. These ejected atoms travel through the vacuum chamber and condense onto the substrate, forming a uniform and adherent thin film. Two primary methods dominate PVD technology:

Sputtering: Energetic ions bombard a solid target material, ejecting atoms that deposit uniformly on the product’s surface. Provides excellent control over coating composition and thickness, even on complex geometries.
Thermal evaporation: The coating material is heated until it evaporates in vacuum and then condenses on the substrate. Faster and simpler.

Advantages of PVD Coating Methods

Precision and Uniformity: Allows extremely thin, uniform coatings with tight control over thickness and composition—hard to achieve with spray or paint.
Adhesion and Durability: Strong adhesion and superior wear resistance extend product lifespan.
Environmental Benefits: No solvents or VOCs (Volatile Organic Compounds) and PFAS-free, making it an eco-friendlier process and coating.
Cost-Effectiveness: Modern automation has reduced costs, making PVD competitive and cost-justified through longer product life.