PERMABOND 737

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 737

Main features

  • Toughened Structural Bonding
  • No-Mix Bonding Processing
  • High-Viscosity Gap Filling

Product Description

PERMABOND® 737 Cyanoacrylate is a toughened, black ethyl-based cyanoacrylate adhesive designed for maximum flexibility and improved impact and peel strength. It is 100% reactive, requires no mixing or heat cure, and is suitable for filling large gaps up to 0.5 mm. Its increased temperature resistance and dark color make it ideal for bonding dark surfaces across a wide variety of materials, including aluminum, steel, plastics, and rubbers.

Key features

  • Toughened and flexible: Offers improved impact and peel strength to handle stress and provide maximum flexibility in the bonded joint.
  • Fast room-temperature cure: Bonds rapidly without mixing or heat, achieving fixture handling strength on steel and rubber in seconds.
  • Excellent gap filling: High-viscosity black formula efficiently fills gaps up to 0.5 mm (0.02 in) while blending seamlessly with dark surfaces.

Applications / Suitable for

  • Bonding aluminum and steel, including zinc-plated and uncoated metals
  • Assembling plastics and rubbers
  • Applications requiring dark surface matching and moderate gap filling
Product Family

PERMABOND 737

Loading pricing…
TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Liquid
Chemistry Type
Ethyl cyanoacrylate
Color
The color
Black
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
2,000-4,000 mPa.s mPa.s
Mechanical Properties
Impact Strength
5-10 kJ/m² mm
Peel Strength
40-60 N/25mm
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.
0.2 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
0.5 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 based cyanoacrylate - -
Appearance Black - -
Viscosity 2,000-4,000 cP at 25°C (mPa.s)
Specific Gravity 1.1 - -
Maximum Gap Fill 0.5 mm (0.02 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
Full Strength 24 hours -
Shear Strength 19-23 N/mm² Steel (ISO 4587)
Tensile Strength 25 N/mm² (ISO 6922)
Peel Strength 40-60 N/25mm ASTM D-903 (9-13 PIW)
Impact Strength 5-10 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