LOCTITE® AA 3974 Light Cure Adhesive

Features and Benefits

A 1-part, medium-viscosity, UV acrylic, light-cure adhesive for potting, sealing and bonding thermoplastics, glass and metals.
LOCTITE® AA 3974 is a translucent-colorless, medium-viscosity, UV acrylic-based, light-cure adhesive for potting, sealing and bonding thermoplastics, glass and metals. When exposed to sufficient UV and/or visible light, it cures rapidly to form a robust bond that stands up to heavy thermal cycling and harsh environmental conditions. This makes it highly relevant for use in the medical device industry to assemble disposable devices.
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Technical Information

Agency approvals / certificates / specifications ISO 10993
Applications Bonding plastic, Medical device assembly, Structural bonding
Color Translucent
Cure type UV cure, Visible cure
Elongation, at break 100.0 %
Key characteristics Cure speed: fast cure, Repositionable, Viscosity: medium viscosity
Number of components 1 part
Physical form Liquid
Recommended for use with Glass, Metal, Thermoplastic
Shear strength, Polycarbonate to Polycarbonate 1910.0 psi
Specific gravity, @ 25.0 °C 1.09
Viscosity, cone & plate, Physica MC101 @ 25.0 °C Cone CP50-1, Shear Rate 50 s⁻¹ 1000.0 - 3800.0 mPa·s (cP)