Medical

Master Bond LED415DC90Med is a dual cure adhesive system which has been specially designed for high-speed manufacturing of medical electronic devices. This one component system passes ISO 10993-5 requirements for non-cytotoxicity, making it further suitable for the medical industry.

LED415DC90Med cures rapidly without oxygen inhibition upon exposure to 405Nm LED light and is subsequently followed by a 30 minute – 45 minute heat cure at 90°C – 95°C, making it well-suited for bonding heat sensitive components. Given its application design, the adhesive resists common medical sterilants, including glutaraldehyde, peracetic acid, ethylene oxide and gamma radiation. 

Unlike conventional dual cure adhesives that limit light penetration to approximately 1mm, LED415DC90Med can partially cure or fixture sections up to 6mm deep when exposed to 405Nm LED light at the appropriate intensity and duration. This deeper cure capability enables the fixturing of opaque components by allowing light penetration through the adhesive from the sides. Master Bond then recommends a subsequent cure at 90°C – 100°C for 30 minutes – 60 minutes to optimise strength and overall performance of the adhesive.

The new product features a thixotropic index of 5.53 at room temperature. It exhibits a tensile strength of 5,500psi – 6,500 psi, a tensile modulus of 450,000 psi – 550,000 psi and a lap shear strength exceeding 1,000 psi (aluminium to aluminium). This rigid system cures to a Shore D hardness of 85 – 90 with an elongation of 1% – 3% at 75°F (23.8°C). Serviceable from -80°F (-62.2°C) – 350°F (176.6°C), LED415DC90Med is electrically non-conductive and bonds well to a variety of substrates including plastics, glass, and metals. LED415DC90Med is available in syringes, ½ pint, pint and quart containers.