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RH Technical Industries, a UK-based manufacturer with over 60 years of experience, is a recognised expert in designing and producing interface and graphic solutions for a range of industries worldwide. Specialising in human-machine interfaces (HMIs), industrial labels, and high-performance graphic overlays, RH Technical Industries is a long-standing partner to Medem, a leading manufacturer of gas detection, gas proving, and interlock safety systems.
The role of graphic overlays in safety-critical equipment
In safety-critical applications, such as Medem’s gas detection systems, graphic overlays serve a vital dual function: they act as the primary user interface and protect sensitive internal components, all while conveying critical safety information.
For Medem’s devices, the requirements are particularly stringent. Operating in environments where exposure to gases, cleaning agents, and physical wear is common, the overlays must be highly durable and resistant to chemicals. Clarity and legibility are essential, especially in low-visibility settings where backlighting may be required to ensure alarms and system statuses are easily understood. The overlays must also seal effectively against moisture, dust, and contaminants to safeguard electronic components. In some applications, tactile feedback and embossed buttons are needed to allow operation while wearing protective gloves—further raising the demands on overlay performance.
Challenges in sourcing customised solutions
For manufacturers like Medem, sourcing high-quality, customised graphic overlays can present several challenges. Common issues include inconsistent print quality, material failures, and poor fit, all of which can delay production and jeopardise product performance and safety. Off-the-shelf overlays often fail to meet precise design and functional requirements, necessitating tailored solutions. In addition, long lead times and communication gaps with suppliers can further complicate project timelines and increase the risk of errors. Balancing the need for durability, reliability, and cost efficiency is critical in meeting both technical standards and market demands.
A tailored solution: Medem’s VGPS-evo system
An example of RH Technical Industries’ work is the overlay designed for Medem’s VGPS-evo gas pressure proving system, which features a user-friendly LCD interface. The overlay, made from robust materials such as polyester, safeguards the LCD and internal electronics from the challenges of commercial environments, including grease, cleaning agents, and impact. Clear, precise printing on buttons and surface instructions ensures safe and accurate system operation. Anti-glare finishes can further improve readability under varying lighting conditions. RH Technical Industries’ precise die-cutting capabilities ensure overlays fit seamlessly, maintaining both functionality and the system’s IP65 environmental protection rating.
Customer endorsement
“RH Technical have consistently delivered high-quality, durable overlays that meet the demanding requirements of our gas safety systems. Their reliability and attention to detail make them a trusted partner.”
— Managing Director, Medem (UK) Ltd.
A trusted partner for critical applications
RH Technical Industries has established itself as a dependable supplier of high-specification graphic overlays across sectors such as medical, military, and industrial. The company prioritises durability and quality, using advanced materials like polyester and polycarbonate to meet the harsh demands of gas detection equipment. Recognising that standard solutions often fall short, RH Technical Industries offers a high level of customisation to meet each client’s specific needs.
By managing the full process in-house—including concept development, engineering, printing, cutting, tooling, and embossing—RH Technical Industries maintains tight quality control and efficient lead times. With a strong focus on customer collaboration, the company consistently delivers products that meet the exacting requirements of partners like Medem, supporting the performance and reliability of critical safety devices.
For more information on Case Study: Superior Graphic Overlays for Gas Safety talk to RH Technical Industries Ltd