Loctite AA 3974 UV Light Cure Potting and Sealing Adhesive

SKU: LOCTITE 1135733

Sale price$819.00

When to Use Loctite 3974 UV Light Cure Adhesive

Loctite 3974 is a fast curing UV light cure adhesive used in a wide range of potting and bonding applications. It provides a strong, permanent bond that stands up to heavy thermal cycling and tough environmental conditions. Loctite 3974 can be cured with UV or visible light and bonds to glass, plastics and metals. 


LOCTITE® AA 3974 is a translucent, colorless, 1-part, UV/Visible light cure acrylic liquid designed for potting, sealing and bonding thermoplastics, glass and metals that must withstand thermal cycling and environmental exposure. Rapid cure is achieved by exposure to ultraviolet light or visible light. It is suitable for use in the assembly of disposable medical devices.

Benefits of Loctite 3974

  • Qualified to Henkel's ISO 10993 Protocol
  • Suitable for use in the assembly of disposable medical devices
  • Can withstand thermal cycling and environmental exposure


Product Type UV Adhesives / Light Cure Adhesives, Adhesives, Structural Adhesives
Substrates Plastic: Thermoset Plastic, Metal, Glass, Ceramic
Physical Form Liquid
Technology Acrylic
Cure Type UV Cure, Visible Cure
Color Clear
Number of Components 1 Part
Key Characteristics Cure Speed: Fast Cure, Flexible, Fluorescent, Mix: No Mix Required, Repositionable, Environment Resistance: Severe Environment Resistance, Thermal Cycling Resistant, Viscosity: Medium Viscosity
Shore Hardness Scale A
Shore Hardness Durometer 77
Shear Strength, Polycarbonate to Polycarbonate (psi) 1800
% Elongation @ Break 100
Viscosity Temperature (°F) 77
Viscosity (Brookfield mPa.s (cP)) 2400
Viscosity Temperature (°C) 25


Technical Data Sheet

Authorized Distributor

Dispensing.com is an authorized distributor of Loctite® adhesives and dispensing equipment, including the Loctite CureJet product line.

View all Henkel Loctite products

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