LOCTITE® AA 3345 LC is a clear, high-strength, medium-viscosity light-curing acrylic adhesive for bonding plastics, metals and glass. It provides rapid cure under UV or visible light and forms a tough, durable bond that supports demanding assemblies.
LOCTITE® AA 3345 LC is formulated for high performance bonding where strength, clarity and fast processing are essential. It cures rapidly when exposed to UV or visible light, creating a strong, transparent bond suitable for both structural and cosmetic assemblies. Its medium viscosity allows clean and controlled dispensing without excessive flow, supporting precise placement in automated or manual processes. The LC designation indicates low chlorine content, making the adhesive suitable for applications in electronics or sensitive device manufacturing. With strong adhesion across plastics, metals and glass, this grade is appropriate for durable housings, transparent covers, optical components and assemblies where reliability and appearance are critical.
Cure method: UV or visible light
Viscosity: medium, suitable for controlled application and gap coverage
Appearance: clear before and after cure
Bond type: strong, durable, transparent
Compatible substrates: plastics, metals, glass
Typical applications: durable assemblies, clear housings, optical components, electronic devices
Primary Chemistry:
Acrylic ester, light cure
Avoids long assembly cycles associated with slower curing structural adhesives. Prevents adhesive run-off in vertical or complex geometries where controlled placement is required. Eliminates the need for separate adhesives for plastic, metal and glass bonding. Reduces aesthetic defects in visible assemblies by curing to a transparent finish. Supports low contamination requirements in electronics or device manufacturing.
Apply LOCTITE® AA 3345 LC to clean and dry surfaces. Assemble the components and expose the joint to UV or visible light to achieve rapid fixture and handling strength. The medium viscosity ensures controlled distribution across the bondline, making it suitable for use in tight tolerances or precision assemblies. Ideal for lighting components, transparent housings, medical devices, electronics and plastic-to-metal bonding where clarity, strength and fast cure are important.
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