PERMABOND TA4605

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

PERMABOND TA4605

Main features

  • Primer-Free Polyolefin Bonding
  • Controlled 1 mm Gap Filling
  • Fast Handling-Strength Development

Product Description

Permabond TA4605 is a two-part, 1:1 toughened acrylic adhesive for bonding low-surface-energy plastics, including polypropylene and polyethylene, without primer or surface treatment. The thixotropic system also bonds metals and composites and supports dissimilar-material assemblies. Microparticles control a maximum gap of 1 mm, while a 2 to 4 minute pot life at 23 deg C provides a defined assembly window. Fixture strength develops in 5 to 10 minutes, handling strength in 20 to 25 minutes, and full cure in 24 hours at 23 deg C. Cured shear results include 15 N/mm^2 on HDPE and 6 N/mm^2 on aluminum-to-PE joints.

Key features

  • Primer-Free Polyolefin Bonding: Bonds polypropylene and polyethylene without a separate primer or surface treatment.
  • Controlled 1 mm Gap: Microparticles help maintain the 1 mm maximum gap during assembly.
  • Fast Handling Development: Reaches typical handling strength in 20 to 25 minutes at 23 deg C.

Applications

Applications include bonding polypropylene, polyethylene, metals, composites, and dissimilar-material assemblies.

Product Family

PERMABOND TA4605

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Off-white / Almost colorless
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
TA4605 A / TA4605 B
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
1:1
Pot Life
Pot life is the amount of time it takes for the viscosity of a material to double (or quadruple for lower viscosity materials) in room temperature after a material is mixed. It is closely related to work life but it is not application dependent, less precise and more of a general indication of how fast a system is going to cure.
2-4 minutes
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.
1.0 / 1.0
Other Properties
Maximum gap fill
1 mm
Storage Temperature
2 - 7 | 5 - 25 °C
Curing Conditions
Fixture Time
5-10 minutes

Additional Information

Technical properties

As-supplied / before-processing properties

Values identify the separate Part A and Part B components or the mixed adhesive, as stated.

Property Value Unit Method / condition
Part A viscosity150,000 to 400,000mPa sAt 25 deg C; thixotropic paste
Part B viscosity20,000 to 30,000mPa sAt 25 deg C
Specific gravity1.0Part A and Part B
Mix ratio1:1Part A to Part B
Maximum gap fill1mmContains microparticles for gap control
Pot life2 to 4minutes2 g + 2 g at 23 deg C
Fixture time5 to 10minutes0.1 N/mm^2 shear strength at 23 deg C
Handling time20 to 25minutes0.3 N/mm^2 shear strength at 23 deg C
Technical properties

After-processing / final-state properties

Strength values are typical cured results for the listed substrates and ISO 4587 test method.

Property Value Unit Method / condition
Shear strength - polypropylene>8N/mm^2ISO 4587; substrate failure observed
Shear strength - polyethylene>7N/mm^2ISO 4587; substrate failure observed
Shear strength - HDPE15N/mm^2ISO 4587
Shear strength - aluminum to PE6N/mm^2ISO 4587
Shear strength - PTFE1.5N/mm^2ISO 4587
Shear strength - ABS>4N/mm^2ISO 4587; substrate failure observed
Shear strength - polycarbonate>5N/mm^2ISO 4587; substrate failure observed
Shear strength - EPDM>3.5N/mm^2ISO 4587; substrate failure observed

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