DYMAX 6-621

Harmonization Code : 3824.99.92.97 | Prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries (including those consisting of mixtures of natural products), not elsewhere specified or included: other : other : other

DYMAX 6-621

Main features

  • Multi-Route Shadowed-Area Cure
  • Phenolic, Glass, and Metal Bonding
  • Structural Coil and Battery Assembly

Product Description

Dymax Multi-Cure 6-621 Adhesive is a light-curable structural bonding adhesive for phenolic and filled plastics, glass, and metal assemblies. UV and visible light provide the primary cure route for exposed areas, while secondary heat and compatible activator cure options address joints where direct light cannot reach the complete bondline. The material supports metal-to-glass bonding, coil winding, potting, and structural battery bonding within the stated application scope. Its combination of multiple cure pathways and broad substrate coverage supports production designs that require both rapid exposed-area cure and a controlled secondary-cure strategy for shadowed regions.

Key features

  • Three-path cure strategy: UV/visible light, secondary heat, and activator cure provide options for exposed and shadowed bond areas.
  • Phenolic, glass, and metal bonding: The supported substrate scope covers phenolic and filled plastics, glass, and metals.
  • Structural assembly range: Applications include metal-to-glass joints, coil winding, potting, and structural battery bonding.

Applications / Suitable for

  • Metal-to-glass bonding
  • Coil winding and potting
  • Structural battery bonding
Product Family

DYMAX 6-621

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Clear Translucent Liquid
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.
1.51
Thermal Properties
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.
74 °C
Chemical Properties
Water Absorption
1.7 %

Additional Information

Technical properties

As-supplied / before-processing properties

Selection characteristics for the adhesive before cure and during process planning.

Property Value Unit Method / condition
Product form Structural bonding adhesive As supplied
Primary cure activation UV and visible light Exposed adhesive areas
Secondary cure option Heat Shadowed or inaccessible bond areas
Activator cure option Compatible activator Close-fitting or shadowed joints
Supported substrate scope Phenolic and filled plastics; glass; metal Within the Bonding scope
Technical properties

After-processing / final-state properties

Final-state characteristics and joint scope after completion of the selected cure route.

Property Value Unit Method / condition
Final function Structural bonded joint After complete cure
Primary bonded interface Metal-to-glass Assembly use
Winding assembly role Coil winding attachment Cured assembly
Encapsulation role Potting Within the Application scope
Battery assembly role Structural battery bonding Within the Application scope

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