PERMABOND UV630

Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide

PERMABOND UV630

Main features

  • Low-Viscosity Plastic Bonding
  • Fast 365 to 420 nm Cure
  • High-Elongation Cured Bond

Product Description

Permabond UV630 is a single-part, low-viscosity methacrylate adhesive for fast UV bonding of plastics, including polycarbonate. The clear liquid has a typical viscosity of 250 mPa s at 25 deg C and cures across 365 to 420 nm. Depending on lamp output and substrate transmission, fixture time on acrylic ranges from 10 seconds with a 4 mW/cm^2 battery lamp to 2 seconds with a 300 mW/cm^2 light guide. The cured adhesive combines typical tensile strength of 14 N/mm^2 with 110% elongation and high shear and impact resistance for assemblies using substrates with different coefficients of thermal expansion.

Key features

  • Low-Viscosity Plastic Bonding: A 250 mPa s viscosity supports controlled application to plastic joints.
  • Fast 365 to 420 nm Cure: Fixtures on acrylic in 2 to 10 seconds under the stated lamp conditions.
  • High-Elongation Cured Bond: Provides 110% typical elongation with high shear and impact resistance.

Applications

Applications include plastic bonding, polycarbonate assembly, and joints that combine substrates with different coefficients of thermal expansion.

Product Family

PERMABOND UV630

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Colorless, clear
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.
>1.490
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.
1.1
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
200-300 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.
110 %
Electrical Properties
Dielectric Strength
Dielectric strength is measured in kV per mm and is calculated by the Breakdown voltage divided by the thickness of the tested material. Those two properties go hand in hand and while Breakdown voltage is always thickness dependent, dielectric strength is a general material property. As an example, the dielectric strength of Polyimide is 236 kV/mm. If we place 1mm of Polyimide between two electrodes, it will act as an insulator until the voltage between the electrodes reaches 236 kV. At this point it will start acting as a good conductor, causing sparks, potential punctures and current flow.
25-30 kV/mm
Chemical Properties
Water Absorption
<3.5 %
Other Properties
Storage Temperature
5 - 25 °C

Additional Information

Technical properties

As-supplied / before-processing properties

Fixture time depends on lamp power, spectral output, distance, and substrate transmission.

Property Value Unit Method / condition
Chemical compositionMethacrylate esterAs supplied
AppearanceColorless, clearAs supplied
Viscosity250mPa sAt 25 deg C; 20 rpm
Specific gravity1.1As supplied
Fixture time on acrylic10seconds4 mW/cm^2 battery lamp
Fixture time on acrylic4seconds100 mW/cm^2 LED lamp
Fixture time on acrylic2seconds300 mW/cm^2 UV light guide
Cure wavelength365 to 420nmMatch lamp output to the photoinitiator
Technical properties

After-processing / final-state properties

Strength and dielectric values are typical cured results for the stated methods.

Property Value Unit Method / condition
Overlap shear - polycarbonate>9N/mm^2ISO 4587; substrate failure observed
Overlap shear - acrylic>1.5N/mm^2ISO 4587
Tensile strength14N/mm^2ISO 37
Refractive index>1.490Cured adhesive
Elongation at break110%ISO 37
Hardness60Shore DISO 868
Dielectric strength25 to 30kV/mmTypical cured value
Water absorption<3.5%ISO 62; 2 hours in boiling water

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