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Nanosilica filled LED curable adhesive is biocompatible


MASTER BOND LED405Med is a one component, LED curing adhesive system that meets ISO 10993-5 cytotoxicity requirements for use in medical device assembly. Product has a nanosilica filler resulting in both lower shrinkage upon cure, as well as improved dimensional stability with a coefficient of thermal expansion of 35-40 in/in x 10-6/°C. Product cures to a hardness of 65-75 Shore D, indicating that it is not too stiff, thereby offering good toughness. Product is optically clear, with a refractive index of 1.50, and boosts light transmission properties. This electrically insulative system delivers a high volume resistivity of more than 1014 ohm-cm and a low dielectric constant of 4.2 at 60Hz. It has good flowability with a viscosity of 2,000-8,000 cps and can be used for bonding, sealing and coating. Product cures up to 0.125 inch thick and is suitable for small encapsulations involving optical assemblies or other sensitive components.


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