PERMABOND TA439
Harmonization Code : 2901.10.00.00 | Acyclic hydrocarbons; Saturated
Main features
- 20-40 Second Structural Fixture
- Low-Viscosity 0.15 mm Gap Bonding
- High Peel and Impact Resistance
Product Description
Permabond TA439 is a low-viscosity no-mix structural acrylic adhesive for metals, ferrites, ceramics and selected plastics. It is used with separately applied Initiator 41 or 41M, or Initiator 43 for plastics. At 25 deg C, viscosity is 600-1,200 cP and maximum gap fill is 0.15 mm. On mild steel at 23 deg C, typical fixture time is 20-40 seconds and handling strength is reached in 40-75 seconds. After cure, typical mild-steel lap-shear strength is 20-25 N/mm2, aluminum peel strength is 85-100 N/25 mm, and impact strength is 15-20 kJ/m2.
Key features
- 20-40 second fixture on mild steel: Typical fixture time is 20-40 seconds at 23 deg C, with handling strength in 40-75 seconds.
- Low-viscosity close-fitting bonding: Viscosity is 600-1,200 cP at 25 deg C with maximum gap fill of 0.15 mm.
- High peel and impact resistance: Typical aluminum peel strength is 85-100 N/25 mm to ISO 4578 and impact strength is 15-20 kJ/m2 to ASTM D-950.
Applications
Structural bonding of metals, ferrites and ceramics; bonding selected plastics.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
AppearanceAppearance
Transparent amber liquidChemistry TypeChemistry Type
Urethane methacrylateSpecific GravitySpecific Gravity
1.0Physical Properties
ViscosityViscosity
600-1,200 mPa.sElectrical Properties
Dielectric StrengthDielectric Strength
30 - 50 kV/mmThermal Properties
Thermal ConductivityThermal Conductivity
0.1 W/m.KAdditional Information
Technical properties
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical composition | Urethane methacrylate | - | Uncured adhesive |
| Viscosity at 20 rpm | 600-1,200 | cP | 25 deg C |
| Specific gravity | 1.0 | - | Uncured resin |
| Maximum gap fill | 0.15 | mm | With Initiator 41 or 41M |
Technical properties
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Lap-shear strength | 20-25 | N/mm2 | Typical cured joint; mild steel; ISO 4587 |
| Peel strength | 85-100 | N/25 mm | Typical cured joint; aluminum; ISO 4578 |
| Tensile strength | 25-30 | N/mm2 | Typical cured adhesive; ISO 37 |
| Impact strength | 15-20 | kJ/m2 | Typical cured adhesive; ASTM D-950 |
