One Component, Dual Cure Epoxy for Medical Applications

Master Bond UV15DC80-1Med is a special dual cure epoxy based system which offers a primary cure utilizing UV light, along with a secondary heat curing mechanism. This system allows for curing in areas that might not be exposed to UV light. There are 2 scenarios for using this material. The first way is to cure the adhesive as much as possible with the UV light, and then complete the cure in the shadowed areas with additional heat. The alternative is to use the UV light to fixture the parts so that they don’t move, and then complete the cure by adding the additional heat.

Master Bond UV15DC80-1Med offers a unique dual cure mechanism utilizing UV light for initial fixation followed by heat for complete polymerization. This addresses limitations of traditional UV adhesives by effectively curing shadowed areas that wouldn't receive sufficient UV exposure, making it suitable for intricate parts and complex geometries. Notably, the adhesive meets ISO 10993-5 cytotoxicity standards, demonstrating biocompatibility for medical device applications.

UV15DC80-1Med has excellent resistance to radiation, liquid sterilants and autoclaving. This one part, no-mix epoxy has a moderate viscosity of 20,000-40,000 cps for versatile dispensing. It delivers strong bonds to various substrates, including metals, glass, ceramics, and many plastics, with a tensile strength exceeding 5,000 psi at 75°F. The cured adhesive offers a wide service temperature range from -80°F to +350°F (-62°C to +177°C) and a high glass transition temperature of 125-135°C. Additionally, it maintains optical clarity with a refractive index of 1.52 at 589 nm.

As a cationic system, UV15DC80-1Med exhibits minimal sensitivity to oxygen. The initial UV cure/tack can be achieved in seconds with UV light (325-365 nm) at a minimum UV radiation intensity of 20-40 mW/cm². Areas with limited UV access need to be subsequently cured with heat at 80°C within 40-60 minutes. To maximize performance, post-cure at 80°C for 2-4 hours or 125°C for 30-60 minutes is recommended. UV15DC80-1Med is available in various container sizes, ranging from a ½ pint to 5 gallons, to suit project needs. It's also offered in convenient 30 cc syringes for manual or automated dispensing.