Global industry-leading manufacturer of high-performance, innovative solutions and components across a wide range of industries.
Serving Biopharm and Cell Therapy
Industry-leading provider of material science-based solutions in the biopharmaceutical and cell therapy markets for single-use fluid management.
Medical Components and Custom Solutions
We provide custom components and engineered systems for the medical device industry, including critical parts where precision enables superior performance.
Electronics and Semiconductor Industry Solutions
Design and manufacture a complete line of ultra-high purity, fluoropolymer-based fluid handling components and solutions for the electronics and semiconductor markets.
Industrial & Consumer Solutions (ICS)
Superior engineering and customer support to achieve safety, performance, and regulatory compliance across a broad range of capabilities. Offerings include Tygon® Tubing and Accessories, Hoses and Fittings, Heat Shrink Tubing, and High-Performance Seals.
Sensors Flow Measurement Solutions
Playing an essential role in preventing cross-contamination, validating essential processes, and driving cost savings, we specialize in the development and production of high-quality single-use flow sensors and corresponding equipment.
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Utilizing a mechanical bond without the need for adhesives or chemicals
At Saint-Gobain Medical Specialty Closures, we leverage advanced ultrasonic welding technology to ensure the secure, consistent, and reliable sealing of liners within caps. Our proprietary process, known as Microlink, is a specialized ultrasonic bonding method engineered to meet the demanding requirements of medical and diagnostic applications.
What is Microlink?
Microlink is a proprietary ultrasonic welding process that creates a mechanical bond between the liner and the cap without the use of adhesives, solvents, or chemicals. This solvent-free approach eliminates the risk of contamination and ensures product integrity for sensitive applications.
How the Process Works
The Microlink process involves the precise placement of a liner into the cap followed by the application of ultrasonic energy. Using a custom-designed anvil to hold the liner securely in place, an ultrasonic horn transmits high-frequency mechanical vibrations to the contact area. These rapid vibrations generate localized frictional heat at the interface of the liner and cap material.
As the materials reach their softening point, the heat facilitates material flow and fusion, creating a permanent, homogeneous bond between the liner and the cap. Once cooled, the result is a structurally sound, tamper-resistant closure without any added adhesives or secondary materials.
Customization & Design Flexibility with Ultrasonic Welding
To accommodate the diverse range of medical and diagnostic cap configurations, we offer fully customizable horns and anvils. Our engineering team can tailor these components to fit various cap sizes, geometries, and liner materials, ensuring optimal energy distribution and weld strength. This flexibility allows for precision bonding even in challenging applications, including:
Open-top caps
Large surface area caps
Non-standard geometries
Whether you require a solution for small-volume specialty closures or high-volume production, the Microlink™ process delivers repeatable performance and manufacturing efficiency.
