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Toughened, Light Cure Adhesives Bond Instantly to a Wide Variety of Substrates

Wed, 06/02/2010 - 6:04am
Toughened, Light Cure Adhesives Bond Instantly to a Wide Variety of Substrates

For bonding applications that must withstand impact or flexing, Henkel Corp. has introduced two Loctite Flashcure light cure cyanoacrylate instant adhesives. Featuring extremely fast cure speeds and a secondary moisture-cure mechanism that allows the adhesives to cure thoroughly in unexposed areas, these toughened light cure formulations adhere to a wide variety of substrates, including plastics, elastomers, rubbers, and metals.

Loctite 4310 Flashcure and Loctite 4311 Flashcure light cure cyanoacrylate 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. They can be used for bonding hypodermic needles, hearing aids, and handheld electronics. These cyanoacrylate instant adhesives are also suitable for sensor bonding and wire tacking applications.

The 4310 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. The 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. on exposure to light. Both adhesives withstand temperatures ranging from -65°F to 180°F.

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