Higher Viscosity UV System

Used in medical device manufacturing applications, Master Bond UV10TKMed is a higher viscosity UV system for bonding, sealing and coating that passes USP Class VI testing. It also meets the requirements of ISO 10993-5 for cytotoxicity. This one part system is optically clear and has a very high glass transition temperature that exceeds 140°C. It resists repeated sterilization, including radiation, ethylene oxide, chemical sterilants and especially autoclaving. The product's service temperature ranges from -60°F to +450°F. It combines dimensional stability with low shrinkage upon curing. The system is 100% reactive and does not contain any solvents or diluents. The system cures readily in 20-30 seconds when exposed to a UV light source emitting at a wavelength of 320-365 nm with an energy output as low as 20-40 milliwatts per cm². The rate of cure depends upon the compound's distance from the light source, the thickness of the section and the intensity of the light source. It should be noted that this system can cure in sections up to ¼ inch. However, when bonding, sections of a few thousandths of an inch are more than adequate. The product is not oxygen inhibited and therefore does not require any special treatment in that regard. It bonds well to glass, composites, surface treated metals and plastics such as polycarbonates and acrylics, among others. It can also be used as a coating or sealant and is a superlative electrical insulator.