PERMABOND TA4810
Harmonization Code : 3904.61.00.00 | Polytetrafluoroethylene plates / sheets / film / tape / strip, self-adhesive, in rolls
Main features
- As-Received Metal Bonding
- Non-Sag 2 mm Gap Filling
- Fast Working-Strength Development
Product Description
Permabond TA4810 is a two-part, 1:1 toughened methacrylate adhesive for structural bonding of thermoplastics, thermosets, metals, and composites. It is formulated for adhesion to as-received metal surfaces and combines thixotropic static-mixer dispensing with non-sag gap filling up to 2 mm. At 23 deg C, typical pot life is 4 to 6 minutes, fixture time is 10 to 15 minutes, and working strength develops in 50 to 60 minutes. It also provides resistance to many common industrial solvents and fuels and is intended for harsh environmental conditions.
Key features
- As-Received Metal Adhesion: Supports high-strength bonding to as-received metal surfaces.
- Non-Sag 2 mm Gap Fill: Thixotropic flow supports static-mixer dispensing and gap filling without sag.
- Fast Working-Strength Build: Develops typical working strength in 50 to 60 minutes at 23 deg C.
Applications
Applications include structural bonding of thermoplastics, thermosets, metals, composites, and mixed-material assemblies.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Appearance
Off-white / Amber
Appearance at room temperature.
Component System
TA4810 A / TA4810 B
Describes the number of components that must be supplied, mixed, or activated before application or cure.
Mix Ratio
1:1
The amount of a constituent divided by the total amount of all other constituents in a mixture
Pot Life
4-6 minutes
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.
Specific Gravity
1.0 / 1.0
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.
Other Properties
Maximum gap fill
2 mm
Storage Temperature
2 - 25 °C
Curing Conditions
Fixture Time
10-15 minutes
Mechanical Properties
Elongation
15-20 %
Elongation is the process of lengthening something.
It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks.
It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
Peel Strength
70-90 N/25mm
Thermal Properties
Thermal Conductivity
0.1 W/m.K
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.
Electrical Properties
Dielectric Strength
30-50 kV/mm
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.
Volume Resistivity
2 x 10¹³ Ohms⋅cm
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
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 viscosity | 150,000 to 230,000 | mPa s | At 25 deg C |
| Part B viscosity | 120,000 to 200,000 | mPa s | At 25 deg C |
| Mix ratio | 1:1 | Part A to Part B | |
| Maximum gap fill | 2 | mm | Typical curing property |
| Pot life | 4 to 6 | minutes | 10 g + 10 g at 23 deg C |
| Fixture time | 10 to 15 | minutes | At 23 deg C |
| Handling time | 20 to 30 | minutes | 0.3 N/mm^2 shear strength at 23 deg C |
| Working strength | 50 to 60 | minutes | At 23 deg C |
Technical properties
After-processing / final-state properties
Strength and electrical values are typical cured results for the stated methods and substrates.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shear strength - steel | 21 to 28 | N/mm^2 | ISO 4587 |
| Shear strength - aluminum | 14 to 22 | N/mm^2 | ISO 4587 |
| Shear strength - fiberglass | >12 | N/mm^2 | ISO 4587 |
| Tensile strength | 29 | N/mm^2 | ISO 37 |
| Peel strength | 70 to 90 | N/25 mm | ISO 4578 |
| Elongation | 15 to 20 | % | ISO 37 |
| Dielectric strength | 30 to 50 | kV/mm | ASTM D-149 |
| Volume resistivity | 2 x 10^13 | ohm cm | ASTM D-257 |
