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Toughened, Light Cure Adhesives for Medical Device Bonding

Wed, 11/10/2010 - 6:30am
Toughened, Light Cure Adhesives for Medical Device BondingFor medical devices that must withstand impact or flexing, Henkel Corp. has introduced two Loctite Flashcure light cure instant adhesives. Loctite 4310 and 4311 Flashcure light cure instant adhesives cure tack-free in just two to five seconds upon exposure to low-intensity UV/visible light. Both adhesives are fluorescent for inspection purposes and meet ISO 10993 biocompatibility standards for medical device assembly. They can be used for bonding hypodermic needles, hearing aids, tubing assemblies, and catheters.

Featuring extremely fast light cure speeds and a secondary moisture-cure mechanism that allows the adhesives to cure thoroughly in unexposed areas, these new toughened light cure formulations adhere to a wide variety of substrates, including plastics, elastomers, rubbers, and metals.

Loctite 4310 Flashcure light cure instant adhesive is a clear to pale green, low-viscosity formulation that fills gaps to 0.005 in. using only moisture cure and can cure to depths up to 0.5 in. on exposure to light. Loctite 4311 is a high-viscosity, clear to pale green formulation that fills larger gaps to 0.008 in. using only moisture cure and can be cured to depths up to 0.5 in. upon exposure to light. Both adhesives withstand temperatures ranging from -65 to 180°F.

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