HOENLE ADHESIVES: Masking Material
Green masking is seen on a hip prosthesis.
Hoenle Adhesives has launched Vitralit® MASK E-20131, a new UV- and visible light-curable masking material designed to simplify temporary protection processes. This mask protects critical parts from media blasting and aggressive cleaning processes. It can be applied quickly and precisely and can easily be removed by peel with no residue left behind. The new material combines fast curing and excellent flexibility.
Specifically developed for use during orthopedic implant manufacturing processes, the mask passed ISO 10993-5 biocompatibility testing to ensure its suitability for medical device applications. It is a solvent-free, one-component acrylate system that provides reliable temporary masking and protective coating performance while supporting modern manufacturing requirements. The liquid masking material is CMR-free and features shear-thinning rheology, enabling precise and controlled application on complex geometries.
Hoenle’s UV-curable masking material offers a modern alternative to the more traditional masking materials, such as tapes, lacquers and waxes, delivering fast, reliable protection against aggressive processing conditions including plating, paint, and high-impact particulates. Applied by syringe, brush, dipping, or spraying, Vitralit® MASK E-20131 cures within seconds using UV or visible light. This removable masking solution helps manufacturers improve process consistency, reduce rework, and increase production efficiency.
The translucent green material is supplied ready to use and is compatible with both manual dispensing and automated application systems. Its thixotropic behavior helps prevent unwanted flow while ensuring excellent coverage of targeted areas. The green color contrasts well on the metal surfaces. This assists visual inspection processes to ensure the mask was properly dispensed and subsequently removed in its entirety.
A key advantage of the new masking solution is its compatibility with both 365 nm and 405 nm LED curing systems, providing optimal efficiency in manual or highly automated production processes. Optional robotic dispensing and curing provides the ability to precisely mask complex 3D geometries. When paired with Hoenle’s UV/LED curing systems, your masking process is optimized for maximum efficiency!
It offers a typical operating temperature range from -45°C to +145°C while maintaining flexibility. With an elongation at break of approximately 210%, the cured material can accommodate mechanical stresses and dimensional changes during downstream processing.
When no longer required, the mask can be peeled away with no residue left behind. For faster post-processing removal, a short 80°C hot water soak will soften the masking material making it easier to peel. This feature eliminates the need for aggressive chemicals helping to streamline production workflows.
Learn more at Hoenle’s website.
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