From printed flexible sensors to catalytic surfaces and medical-grade coatings: ORELTECH’s metallization liquids and curing technology are developed to enhance surfaces with functionality, and to deliver a sustainable and cost-effective solution wherever precious metals are needed.

ORELTECH: It’s more than conductive ink… It’s expertise in functional coating efficiency!

We are one of the leading innovators and experts in metallization liquids. Through years of research and development, we created a range of outstanding metal coating products that add functional layers to printed electronics, medical devices, and other high-tech products and industrial applications – while producing less waste and consuming up to 95% less energy during the process!


Optimized for sustainable manufacturing processes

ORELTECH metal coatings are one of the most sustainable solutions on the market – because they are developed with a focus on a more efficient and streamlined production. To achieve flawless integration, we offer co-development services for optimizing your processing and application line. Your benefit: customized solution with added value and efficiency from process to product while lowering your environmental impact.

Value beyond the surface

Whether it is about optimizing material efficiency or the development of highly innovative products, we at ORELTECH are committed to adding value to your product - from first application tests to the final high volume production.



Direct deposition


ORELTECH metallization liquids do not contain solid content. That leads to superior printability (inkjet, aerosol jet) and allows you to move away from subtractive processes.

Direct deposition

Low temperature

Curing with plasma allows a nearly unlimited choice of substrates – especially temperature-sensitive ones. You can save up to 95% electrical energy with plasma treatment.

Direct deposition

Pure metal layers

Metal layers prepared with ORELTECH technology are pure without organic traces and possess superior material properties such as conductivity or catalytic activity.



Bespoke is the standard for us. It’s very common that we tailor our formulation to match your specific substrate and product requirements.

Sustainable production

Sustainable product

Producing and using ORELTECH metallization liquids is virtually waste-free and low energy. This helps make your production more sustainable and achieve your CO2 goals.

Material efficiency

Process economy

Most of our customers find that the ORELTECH process is surprisingly economical. It requires low investment and low running costs for energy and gas.

How we work


Working with ORELTECH gives you value beyond the surface. ORELTECH is solution developer for both proven products and new ideas. When you partner with us, we provide following services:

  • We co-develop your product with you and assist with all our expertise in metallization.
  • Bespoke is the rule rather than the exception. We draw on many years of experience and a large library of liquid formulations to customize the optimal formulation for your specs and substrate.
  • From first feasibility tests to fine-tuning mass production, we keep all development steps transparent and modular so you stay in the driver’s seat at all times.
  • We support in assessing and optimizing TCO for your use of ORELTECH technology early in our collaboration so you can make the right decisions.
  • We are satisfied when you master our technology in your production – we support process design, give guidance on investment into equipment and provide training.
  • When you work with us, you benefit from our network of partners in coating and printing, plasma, prototyping, small batch production and much more.


ORELTECH technology enables simple, direct, and fast deposition of metal coatings. OTech conductive inks and plating solutions are cured with safe, low-temperature plasma technology, leaving no chemical waste behind. Our technology consists of two simple steps:

Step 1: Printing/Coating
Arrow right
Step 2: Plasma curing
Plasma curing
Arrow right
Pure metal layer
Products bg


ORELTECH metallization liquids based on precious metals are suitable for various applications, ranging from printed electronics to coatings of 3D components. We divide our range of products in two main categories: OTECH CONDUCTIVE INKS and OTECH COATING SOLUTIONS.

All our products are metallized using a fast and simple cold plasma process, introducing big cuts on energy costs and processing time in comparison to thermal processing. You can apply our products using inkjet printing, aerosol spray, slot die, or dip dye deposition methods.

You can also rest easily knowing that our products are produced efficiently and sustainably, utilizing low-energy, low-waste processes.

Currently, OTech metallization liquids are available with silver, gold, platinum, and palladium . Other metals (iridium, copper) can be developed upon request. Have a look at our full range of products on our Product page.

OrelTech GmbH
Rudower Chaussee 29
12489 Berlin