Magna-Tac™ E645
- Chemical Family
- Epoxy & Epoxy Derivatives
Magna-Tac™ E645 is a two-part, thermosetting, formulated epoxy adhesive for bonding stack laminations used in stators, rotors, gyros, servomechanisms, synchros, transformers and magnetic amplifiers. It can also be used as an insulating varnish for impregnated coils and small electrical equipment. Bonding is achieved by heat. Only sufficient pressure to assure complete contact is needed.
Other characteristics
- Brand
- Magna-Tac
- Cure Method
- Heat Cure
- Product Type
2K (2 component) Adhesive, Epoxy Adhesive, Varnishes
- Application Area
- Amplifiers, Coils, Power Transformers, Rotors
- Application Method
Brush, Dip Coating, Injection, Roll Coater, Spray
- Compatible Substrates & Surfaces
- Metal
- Base
- Modified epoxy
- Diluent
- Solvent
- Markets
- Adhesives & Sealants
- Consumer Goods
- Electrical & Electronics
- Industrial
- Features
Magna-Tac E645 has proved practical as an adhesive/dielectric in the fabrication of magnetic accelerator units such as cyclotrons and cosmotrons, because so little adhesive is needed to accomplish a strong bond which resists shear stress. Magna-Tac E645 is a strong metal-to-metal adhesive. Because of its excellent mechanical strength plus its resistance to many solvents, water, atmospheric conditions and temperature changes, this adhesive is adaptable to many industrial uses. It is particularly suited to the bonding of large surface areas and mass production processing.
- Shelf LIfe
- 1 year
- Cure
- Heat Cure
Technical data
Table 1 of 2
15 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Viscosity (Part A) | 6000.0 | cps | — |
| Viscosity (Part B) | Water thin | — | — |
| Weight Per Gallon (Part A) | 9.3 | lbs | — |
| Weight Per Gallon (Part B) | 8.4 | lbs | — |
| Compressive Strength | Approx. 60,000 | psi | — |
| Flash Point | 151.0 | °F | — |
| Modulus | 5.0 x 10⁵ | psi | — |
| Linear Coefficient Of Expansion | 65 x 10⁻⁶ | inches/inches/°C | — |
| Thermal Conductivity | 5000 x 10⁻⁷ | calories/(second)(square cm)(°C)(cm) | — |
| Hardness | 75.0 | Shore D | ASTM D 2240 |
| Tg | 114.0 | °C | — |
| % TML (Cured 1 hr at 100°C, in air followed by 4 hrs at 180°C, at 10⁻² Torr Vacuum) | 0.5 | — | NASA Outgassing Technical Note TND-8008 |
Table 2 of 2
2 rows| Characteristic | Value | Unit |
|---|---|---|
| Solid Content (Part A) | 77.0 | % |
| Solid Content (Part B) | 12.0 | % |
