silicone tubing with silicone ink markings

Silicone inks

High-purity silicone inks designed for marking silicone surfaces in healthcare and advanced technologies applications.

Easily mark silicone components that operate under demanding conditions with NuSil® silicone inks from Avantor®. Our inks are formulated, manufactured and purified to meet the strictest performance requirements of the healthcare, optoelectronics and electronics industries.

NuSil medical-grade inks are the only biocompatible inks on the market supported for use in long term medical implants.

Our inks for advanced technologies industries are non-corrosive and are formulated to perform under high and low temperatures.

NuSil silicone inks offer strong adhesion for long-term stability. NuSil inks are ideal for pad printing or silk screening markings such as usage instructions or branding elements on silicone devices or components including extruded tubing, calendered sheeting, molded balloons, and other components.

  • Colors: NuSil offers a variety of colors: black, white, red, orange, yellow, green, dark blue, blue and purple. Custom color matching to Pantone Matching System (PMS) or AMS-STD-595 references are available upon request.
  • Curing options: Our portfolio includes room temperature vulcanizing (RTV) or heat cure options to ensure you find an ink that seamlessly integrates into your manufacturing processes.

Customization mastered

From prototype scale to mass production, NuSil has the expertise, processes and proprietary technology to customize silicones based on your unique specifications. We leverage our insight into the unique silicone chemistry and material properties to supply both off-the-shelf and custom formulations tailored to meet your process and end application performance requirements.

Learn more about how we can help you get the products you need.

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Interior NuSil silicone production technology

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Example of pacemaker with silicone components shown

Medical implants

Compatible with silicone parts and other components, our marking inks offer long-lasting reliability with biocompatibility support for applications implanted in the body > 29 days.

infant with silicone airway device

General healthcare

Our medical-grade silicone marking inks combine high-opacity properties with increased hiding power for a range of healthcare components, including catheters and other molded or extruded components.

Children using large digital touchscreen display

Optoelectronics & electronics

From addition-cure options to a broad operating temperature range, NuSil provides reliable ink for silicone rubber parts and other components. Our advanced technologies portfolio includes inks in a range of colors that spans from clear to violet.

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How can we help you?

As one of the leading silicone ink suppliers, our experienced team will help you find the right product for any application, from medical devices to optoelectronics like display screens.

Avantor® is a leading global provider of mission-critical products and services to customers in the life sciences and advanced technologies & applied materials industries. The company operates in more than 30 countries and delivers an extensive portfolio of products and services. As our channel brand, VWR offers an integrated, seamless purchasing experience that is optimized for the way our customers do business. We set science in motion to create a better world. For information visit, and find us on Linkedin, Twitter and Facebook.