PERMABOND TA440
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- Rapid 1:1 Structural Acrylic Bonding
- 15-30 Second Fixture on Zinc
- High Shear, Peel and Impact Strength
Product Description
Permabond TA440 is a two-component 1:1 structural acrylic adhesive for metals, glass, wood, ferrites, ceramics and selected rigid plastics. TA440A and TA440B can be applied to opposing surfaces or dispensed bead-on-bead so the two components combine during assembly. On zinc at 23 deg C, typical fixture time is 15-30 seconds and handling strength is reached in 60-90 seconds. After cure, typical mild-steel lap-shear strength is 15-25 N/mm2. Typical peel strength is 45-65 N/25 mm to ISO 4578, while impact strength is 10-15 kJ/m2 to ASTM D-950.
Key features
- 1:1 bead-on-bead or opposing-surface application: TA440A and TA440B are used at a 1:1 ratio and can combine as the parts are assembled.
- 15-30 second fixture on zinc: Typical fixture time is 15-30 seconds at 23 deg C, with handling strength in 60-90 seconds.
- Cured peel and impact resistance: Typical peel strength is 45-65 N/25 mm to ISO 4578 and impact strength is 10-15 kJ/m2 to ASTM D-950.
Applications
Structural bonding of metals, glass, wood, ferrites and ceramics; bonding selected rigid plastics.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Chemistry TypeChemistry Type
Urethane methacrylateColorColor
Amber /GreenSpecific GravitySpecific Gravity
1.1Physical Properties
ViscosityViscosity
5,000 12,000 mPa.sThermal Properties
Thermal ConductivityThermal Conductivity
0.1 W/m.KElectrical Properties
Dielectric StrengthDielectric Strength
30 - 50 kV/mmAdditional Information
Technical properties
As-supplied / before-processing properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Part A chemical composition | Urethane methacrylate | - | Uncured Part A |
| Part B chemical composition | Urethane methacrylate | - | Uncured Part B |
| Part A viscosity at 20 rpm | 5,000-12,000 | cP | 25 deg C |
| Part B viscosity at 20 rpm | 5,000-12,000 | cP | 25 deg C |
| Mix ratio | 1:1 | - | Part A : Part B |
Technical properties
After-processing / final-state properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Lap-shear strength | 15-25 | N/mm2 | Typical cured joint; mild steel; ISO 4587 |
| Peel strength | 45-65 | N/25 mm | Typical cured joint; ISO 4578 |
| Tensile strength | 25 | N/mm2 | Typical cured adhesive; ISO 37 |
| Impact strength | 10-15 | kJ/m2 | Typical cured adhesive; ASTM D-950 |
