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Case Studies

Ensuring adhesion reliability for UK based foam sealing specialist

Robafoam - Robotically-Applied, Foam Seal Specialist


Robafoam is a leading company in the field of foam sealing, providing high-quality and reliable solutions for various industries. Their innovative CeraPUR foam seal is applied by robots to create watertight, noise-reducing, and protective joints on any substrate. Here we discuss how they have incorporated the Henniker Cirrus system into their foam sealing production process.

About the customer

Robafoam Ltd are a specialist company whose technology and expertise is focused on the automatic application of foam seals. With over 30 years industrial adhesive and sealant experience they represent a significant resource in this field.



How Robafoam and Henniker’s Cirrus atmospheric plasma system enhance foam sealing performance.

Foam sealing is a process that involves applying a foam seal to a surface to prevent leakage, noise, vibration, or dust. Foam sealing is widely used in various industries, such as automotive, aerospace, and construction, to improve the quality and safety of products and components.

However, foam sealing can be challenging due to the low surface energy and contamination of some materials, which can reduce the adhesion strength and reliability of the foam seal. To overcome this challenge, Robafoam, a UK based foam sealing specialist, has partnered with Henniker, a leading manufacturer of plasma treatment systems, to use their Cirrus atmospheric plasma system for surface preparation before foam bonding.

Robafoam is a leading company in the field of foam sealing, providing high-quality and reliable solutions for various industries. Their innovative CeraPUR foam seal is applied by robots to create watertight, noise-reducing, and protective joints on any substrate. However, to ensure optimal adhesion of the foam seal to the component surface, they needed a way to increase the surface energy and remove any contaminants.


That's where Henniker came in. Henniker is a UK-based company that specializes in plasma treatment systems and services. Plasma treatment is a fast and effective way to modify the surface properties of materials, enhancing their wettability, adhesion, and bonding performance. Plasma treatment can also clean and activate surfaces, removing any organic or inorganic contaminants that may interfere with the adhesion process.

Henniker offered Robafoam a free trial of their Cirrus Atmospheric System, a versatile and user-friendly plasma treatment device that can be easily integrated into existing production lines. The Cirrus system uses a low-temperature plasma jet that can treat various shapes and sizes of components, without damaging or altering their bulk properties. The plasma jet delivers a stream of reactive gas species that interact with the surface molecules, creating new functional groups that increase the surface energy and polarity. The plasma jet also removes any dust, grease or oils that may be present on the surface, leaving it clean and ready for the foam seal application.


Robafoam robot



Foam sealed gasket


Robafoam installed the Cirrus system on their site and tested it on different substrates and foam seal formulations. They found that the plasma treatment significantly improved the adhesion strength and durability of the foam seal, as well as its resistance to environmental factors such as humidity and temperature. The plasma treatment also reduced the curing time of the foam seal, increasing the productivity and efficiency of their process.

Robafoam was very satisfied with the results and decided to purchase the Cirrus system from Henniker. They also appreciated the support and advice that Henniker provided throughout the trial period and beyond. Henniker and Robafoam have established a strong partnership based on mutual trust and innovation.

“We are very pleased with the assistance we got from Henniker since the beginning of our collaboration. They had the solution we were looking for and they were very helpful and friendly. We have built a strong partnership that we hope will last for a long time. Our main goal is to provide the best service to our customers, and we believe Henniker will be able to fully support us in achieving that.”

Henniker is proud to have helped Robafoam enhance their foam sealing technology with plasma treatment.

If you are interested in learning more about how plasma treatment can benefit your application, please contact Henniker today. We would be happy to provide you with a free consultation and demonstration of our plasma systems.

Chart showing the effect of palsma clean on the strength of wire bonds

Atmospheric in-line plasma system installation at Robafoam


Watch the video below to see the system in action! or Click here to download the full Case Study

Ensuring Adhesion Reliability for UK Based Foam Sealing Specialist

To ensure the adhesion reliability of the foam seals, Robafoam uses Henniker’s Cirrus atmospheric plasma system. This system creates a plasma jet that treats the sealing surface before the foam is applied. The plasma jet cleans and activates the surface, making it more suitable for foam bonding. The plasma treatment improves the quality and durability of the adhesive bond between the foam and the surface.


See what our customers have to say

  • "The technical team at Henniker are very knowledgeable and supportive and always approachable. I have found it a pleasure to work with them."

    Simon Baxter - BAE Systems, MAI

  • "Henniker guided us to choose the most suitable plasma unit for our application, ensured an accelerated delivery time & guided us through the very easy setup. We obtained quality results with their unit within minutes of setup & consistent results thereafter. The support they have provided has been rapid and helpful."

    Dr Ravi Desai - Making Lab, Francis Crick Institute

    Francis Crick Institute
  • "Henniker provided our team with excellent service during the course of our work together, the plasma cleaner arrived quickly and was installed with ease, giving us visible results from the outset and confirming that we made the right decision in choosing a local UK manufacturer."

    Dr Panagiotis Manesiotis BSc MRSC - Queen’s University Belfast

    Queens Uni Belfast
  • "Our customers and operations demand reliability at every level and were a key factor in our decision to choose a UK based manufacturer of plasma treatment equipment."

    Tom Doak - Trak Microwave

    Queens Uni Belfast
  • "Henniker’s after sales support is first class. They have always been extremely responsive if we have ever had need to call on them."

    Steve Rackham - Teledyne

  • "Henniker’s plasma systems have delivered tangible benefits to us right from day one. The team there are very easy to work with."

    Ian Bruce - Coopervision

  • "Henniker really stood out, both in their product range and technical knowledge. They are a great company to work with."

    Karthik Nair - University of Bradford

    University of Bradford
  • "We are very impressed with the ease of use and reliability of our plasma unit and were producing results within minutes of setting it up."

    Dr Neil Wilson - Warwick University

    Warwick University
  • "Our collaborative work with the team at Henniker was a very positive experience and one that we look forward to developing further."

    Ewen Kellar - TWI

  • "Henniker provided a tailored product to match our exact requirements. They are a pleasure to work with."

    Dr Will Shu - Heriot Watt University

    Heriot Watt University

  • Huf
  • Kingspan
  • BOC
  • Maclaren
  • Cambridge Uni
  • Warwick Uni
  • Morgan Ceramics
  • QMUL
  • University Bradford
  • BAE
  • Imperial College London
  • Heriot Watt Uni
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