PERMABOND HL138

Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.

PERMABOND HL138

Main features

  • Low-Viscosity Retention for Close Clearances
  • Press-Fit and Clearance-Fit Shaft-Hub Assembly
  • Rapid 10-Minute Handling on Steel

Product Description

Permabond HL138 is a low-viscosity anaerobic retaining compound for shaft-hub assemblies, press fits and clearance-fit cylindrical metal parts. Its 150-300 cP viscosity at 25 deg C allows the liquid to flow into close clearances before curing when confined between mating metal surfaces. The product fills gaps up to 0.127 mm and reaches typical handling strength on M10 steel in 10 minutes at 23 deg C. Typical cured shear strength is 16 MPa on a steel collar-and-pin test to ISO 10123. HL138 fits close-clearance cylindrical retention where low viscosity and rapid handling are important.

Key features

  • Press- and clearance-fit retention: Retains shaft-hub and other close-fitting cylindrical metal assemblies.
  • Low-viscosity application: Viscosity is 150-300 cP at 25 deg C for flow into close clearances.
  • 10-minute handling on steel: Typical handling strength is reached on M10 steel in 10 minutes at 23 deg C.

Applications

Retaining shaft-hub assemblies; press fits; clearance fits and other close-fitting cylindrical metal parts.

Product Family

PERMABOND HL138

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Green
Chemistry Type
Acrylic
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
150-300 mPa.s
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.
11 kV/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.
0.19 W/m.K

Additional Information

Technical properties

As-supplied / before-processing properties

PropertyValueUnitMethod / condition
Chemical compositionAcrylic-Uncured material
Viscosity150-300cPUncured material; 25 deg C
Specific gravity1.1-Uncured material
Storage temperature5 to 25deg CManufacturer storage guidance
Technical properties

After-processing / final-state properties

PropertyValueUnitMethod / condition
Break torque20N mTypical cured material; M10 steel; ISO 10964
Prevailing torque36N mTypical cured material; M10 steel; ISO 10964
Shear strength16MPaTypical cured material; steel collar and pin; ISO 10123

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