PERMABOND 4C40

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 4C40

Main features

  • Fast 5-10 Second Fixture
  • 0.43 mm Gap Filling
  • Medical-Device Cyanoacrylate Bonding

Product Description

Permabond 4C40 is a colorless, one-part ethyl cyanoacrylate adhesive for medical-device and large-gap bonding applications. Its medium-high viscosity of 1,200-2,400 mPa s at 25 deg C provides controlled placement and gap filling up to 0.43 mm. Typical fixture time is 5-10 seconds on steel, Buna N rubber, and phenolic, with full strength developing after 24 hours. The cured adhesive reaches 20-22 N/mm2 shear strength on steel and 85 Shore D hardness. Applications include metals, ceramics, plastics, elastomers, polyacetals, and passivated metal surfaces.

Key features

  • Large-Gap Cyanoacrylate: Fills gaps up to 0.43 mm for controlled instant bonding.
  • Fast Fixture: Reaches handling strength in 5-10 seconds on specified substrates.
  • Hard Cured Bond: Provides 85 Shore D hardness and 20-22 N/mm2 steel shear strength.

Applications

Applications include medical-device bonding, large-gap bonding, and assembly of metals, ceramics, plastics, elastomers, polyacetals, and passivated metal surfaces.

Product Family

PERMABOND 4C40

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Colorless
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
1,200-2,400 mPa.s
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

Additional Information

Technical properties

As supplied / before processing

Property Value Unit Method / condition
Chemical compositionEthyl cyanoacrylateAs supplied
AppearanceColorlessAs supplied
Viscosity1,200-2,400mPa sAt 25 deg C
Specific gravity1.1As supplied
Maximum gap fill0.43mmTypical curing property
Fixture / handling time5-10secondsSteel, Buna N rubber, and phenolic; 0.3 N/mm2 shear strength
Full strength24hoursTypical cure development
Technical properties

After processing / final state

Property Value Unit Method / condition
Shear strength - steel20-22N/mm2ISO 4587
Impact strength3-5kJ/m2ASTM D-950
Coefficient of thermal expansion90 x 10^-6mm/mm/deg CTypical cured value
Thermal conductivity0.1W/(m K)Typical cured value
Hardness85Shore DISO 868

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