LOCTITE 3211

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

LOCTITE 3211

Main features

  • UV/Visible-Light Cure Activation
  • Fast Adhesive Cure
  • Low-Viscosity Adhesive Application

Product Description

LOCTITE® AA 3211 LC is a one-component ultraviolet and visible light-curing acrylic adhesive formulated for rapid bonding of plastics, glass and metal substrates. Its clear, low-viscosity formulation enables fast curing under appropriate UV light sources while producing transparent, durable bonds. The adhesive is particularly suitable for applications requiring optical clarity, efficient processing and good adhesion across a broad range of materials. Once cured, LOCTITE AA 3211 provides a balance of strength, flexibility and environmental resistance, making it suitable for industrial, electronic and general assembly applications.

Key Features & Benefits

  • UV and visible light-curing acrylic adhesive
  • One-component system requiring no mixing.
  • Clear, transparent cured appearance.
  • Fast curing for high-throughput manufacturing processes.
  • Good adhesion to plastics, glass and metal substrates.
  • Low viscosity for easy dispensing and penetration into close-fitting assemblies.
  • Suitable for transparent bonding applications requiring optical clarity.

Recommended Applications

  • Plastic-to-plastic bonding assemblies.
  • Glass-to-plastic and glass-to-metal bonding.
  • Electronic and industrial component assembly.
  • Optically clear bonding applications.
  • Manufacturing environments utilizing UV curing equipment.
Product Family

LOCTITE 3211

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Refractive index
The refractive index determines how much the path of light is bent, or refracted, when entering a material. It is calculated by taking into account the velocity of light in vacuum compared to the velocity of light in the material. The refractive index calculation can be affected by the wavelength of light and the temperature of the material. Even though it is usually reported on standard wavelengths it is advised to check the TDS for the precise test parameters.
1.48
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.13
Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
8,000 - 14,500 mPa.s
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
260 %

Additional Information

Technical Properties

As-Supplied / Before-Processing Properties

Property Value Unit Condition
Technology Acrylic — UV / Visible Light Cure
Chemical Type Acrylic Adhesive — Light-curing system
Appearance Clear Liquid — As supplied
Odor Mild — As supplied
Density 1.164 g/cm³ 20°C
Dynamic Viscosity 25 mPa·s Shear gradient 15 s⁻¹
Flash Point 86 °C Pensky-Martens Closed Cup
Initial Boiling Point >93 °C Typical property
Technical Properties

After-Processing / Final-State Properties

Property Value Unit Condition / Method
Cured Appearance Clear / Transparent — UV-cured adhesive
Adhesion Performance High — Glass, metals and plastics
UV Cure Mechanism Photopolymerization — Ultraviolet / visible light exposure
Volume Stability Excellent — Crosslinked cured network
Environmental Resistance Good — Industrial service conditions
Electrical Insulation Characteristics Good — Typical cured acrylic adhesive
Optical Clarity Excellent — Transparent bond lines

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