Technical Specifications
| Specification | ULTIMEG 2020 Base |
|---|---|
| Product Name | ULTIMEG® 2020 Base |
| Manufacturer | AEV Limited / Advanced Electrical Varnishes |
| Product Code | U2020.B / U2020 |
| Product Type | Epoxy resin – Component A / Base |
| Chemical Type | Two-component epoxy resin system |
| Solvent Content | Solvent-free |
| Appearance | Clear / transparent resin; pigment-free versions available |
| Base Density @ 25°C | 1.13–1.17 g/cm³ |
| Base Viscosity @ 25°C | 20–25 poise |
| Mixing Ratio by Weight | Base : Hardener = 5 : 1 |
| Mixing Ratio by Volume | Approximately 4.3 : 1 |
| Mixed Density | 1.10–1.14 g/cm³ |
| Mixed Viscosity @ 25°C | 2–6 poise |
| Pot Life | Approx. 30 min for 100 g at 20°C according to the BEVI technical sheet |
| Curing at 25°C | Approx. 24 hours |
| Curing at 50°C | Approx. 6 hours |
| Hardness after cure | Approx. 88 Shore D |
| Dielectric Strength | Approx. 18.2 kV/mm |
| Thermal Conductivity | Approx. 0.22 W/m·K |
| Thermal Class | Class H / 180°C in the referenced product documentation |
| Electrical Properties | Excellent electrical insulation properties |
| Chemical Resistance | Good resistance to chemicals and contamination |
| Moisture/Dirt Protection | Good protection against dirt and chemicals |
| Typical Packaging | 0.5 kg and 1 kg system packs; larger packs are also available |
| Storage Stability | Approx. 24 months unopened when stored in a cool, dry location |
| Cleaning Agent Before Cure | Acetone |
The above values are taken from a published ULTIMEG 2020 technical sheet; AEV/product documentation can vary by revision, formulation and application.
Main Applications
- Electrical motor winding impregnation
- Stator and rotor impregnation
- Generator winding insulation
- Transformer applications
- Electrical and electronic component encapsulation
- Potting and sealing
- VPI (Vacuum Pressure Impregnation) applications
- Protection of electrical components against moisture and contamination
- Large-volume electrical casting applications
Mixing & Curing
ULTIMEG 2020 is a two-component system consisting of Base + Hardener. The commonly specified mixing ratio is:
Base : Hardener = 5 : 1 by weight
For example, 500 g Base + 100 g Hardener = 600 g mixed material.
The components should be mixed carefully and gently to minimize air entrapment. The published technical information gives approximately 24 hours curing at room temperature or 6 hours at 50°C.
Important Safety Information
The Base contains epoxy resin components and glycidyl ether-type reactive materials. The SDS identifies it as capable of causing skin sensitization and irritation to the eyes/skin, with environmental hazards also identified. Appropriate gloves, eye protection, ventilation and the manufacturer’s current SDS should be used when handling it.
