LOCTITE AA 3526
- Cures rapidly
- Excellent adhesion to glass, plastics and metals
LOCTITE® AA 3526 is a translucent, pale straw to amber, 1-part, medium viscosity, UV/visible light-cured, liquid modified acrylic adhesive. It cures rapidly to form flexible, transparent bonds when exposed to ultraviolet light and/or visible light of sufficient irradiance. The secondary cure system permits cure of product in shadowed areas.
LOCTITE® AA 3526 is an Acrylic, monocomponent liquid with positive fluoresence under UV light. It's bonding cure profile benefits high speed curing production lines.
LOCTITE® AA 3526 can be cured by exposure to UV and/or visible light radiation or heat . The speed and depth of cure will depend on the UV intensity measured at the product surface.
- 15minutes at 121°C
Fixture time is defined as the time to develop a shear strength of 0.1 N/mm².
UV Fixture Time, Glass microscope slides, seconds:
- Black light, Zeta® 7500 light source:
- 6 mW/cm², measured @ 365 nm ≤5LMS
| 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.
| 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.
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
The viscosity of a material can be decreased with an increase in temperature in
order to better suit an application
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.
| Glass Transition Temperature (Tg)
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.
The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.