PERMABOND 240

Harmonization Code : 3506.10.00.00 | 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

PERMABOND 240

Main features

  • 15 to 20-Second Fixturing Time
  • Up to 0.4 mm Gap Filling
  • WRAS/MIL-A-46050C Qualification Scope

Product Description

Permabond® 240 Cyanoacrylate is a high-viscosity, single-component adhesive designed for large gap applications and bonding porous substrates. This 100% reactive formulation polymerizes rapidly at room temperature when pressed into a thin film, eliminating the need for mixing or heat curing. It is highly versatile, providing fast-setting, high-strength bonds on a wide variety of materials including plastics, rubbers, and metals.

Key features

  • Rapid, room-temperature cure: Achieves fixture handling times in just 15 to 20 seconds on materials like steel, Buna N rubber, and phenolic.
  • High viscosity: Optimized viscosity profile allows for a maximum gap fill of 0.4 mm (0.017 in) and makes it highly effective for porous substrates.
  • Industry approvals: Approved to MIL-A-46050C Type II Class 3 for existing designs and holds WRAS Drinking Water Approval.

Applications / Suitable for

  • Bonding plastics, rubbers, and metals
  • Large gap applications up to 0.4 mm
  • Porous substrates
Product Family

PERMABOND 240

Loading pricing…
TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Liquid
Chemistry Type
Ethyl cyanoacrylate
Color
The color
Colourless
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
1,200-2,500 mPa.s mPa.s
Mechanical Properties
Impact Strength
3-5 kJ/m² mm
Thermal Properties
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
0.1 W/m.K
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 kV/mm
Maximum gap fill
0.4 mm

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties; these values are not intended for use in preparing specifications.

Property Value Unit Method / condition
Chemical Composition Ethyl cyanoacrylate - -
Appearance Colorless - -
Viscosity 1,200-2,500 cP at 25°C (mPa.s)
Specific Gravity 1.1 - -
Maximum Gap Fill 0.4 mm (0.017 in)
Technical properties

After-processing / final-state properties

Typical properties; these values are not intended for use in preparing specifications.

Property Value Unit Method / condition
Fixture/Handling Time 15-20 seconds Steel, Buna N Rubber, Phenolic
Full Strength 24 hours -
Shear Strength 21-25 N/mm² Steel (ISO 4587)
Shear Strength 8-9 N/mm² Aluminium (ISO 4587)
Impact Strength 3-5 kJ/m² ASTM D-950
Hardness 85 Shore D ISO 868
Dielectric Strength 25 kV/mm -

Leading Brands Trust in Our Products and Services

Products that Perform| Knowledge that Serves| Service that Delivers