3M Scotch-Weld 3581 UV Dual Cure Epoxy Adhesive One-Part Structural Glue for Camera Lens Module Assembly

The 3M Scotch-Weld 3581 is a one-part, dual-cure epoxy adhesive that combines UV light activation with a secondary heat or anaerobic cure mechanism. Designed for precision optical and electronics assembly, it ensures complete cure even in shadowed areas where UV light cannot reach — a critical advantage in camera lens module and sensor assembly applications.

• Type: One-part dual-cure epoxy adhesive (UV + secondary cure)
• Cure method: Primary UV cure + secondary heat or anaerobic cure for shadow areas
• Applications: Camera lens module assembly, optical sensor bonding, precision electronics
• Bond properties: High structural strength, excellent optical clarity, low outgassing
• Substrates: Glass, metal, plastics, optical components
• Advantage: Reliable full cure in complex geometries where UV access is limited
• Brand: 3M Scotch-Weld

Trusted by optical and electronics manufacturers for demanding precision assembly where bond integrity and optical performance cannot be compromised.