• Item Name: INSULCAST LN 1-05
• Manufacturer: ITW Performance Polymers
• Technologies: Non-cracking epoxy potting system using advanced polymer–filler technology
• Color: Black (Part A), Neutral (Part B)
• Cure Type: 36 h at 25°C or 16 h at 25°C + 2 h at 65°C
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 12 months
INSULCAST LN 1-05 is a non-cracking, high-performance epoxy compound designed for large potting and encapsulation applications. It delivers excellent electrical insulation and mechanical stability across a wide temperature range. Utilizing advanced polymer and filler technology, it ensures minimal cracking and reliable performance. The system is mixed from Part A and Part B and can be cured at room temperature or with a post-cure for accelerated performance.
Large-scale potting and encapsulation
Electrical insulation for transformers, coils, and high-voltage components
Applications requiring minimal cracking under thermal stress
UL 94 V-0 flame-retardant assemblies
Components exposed to wide temperature ranges
Before Mixing / Base and Curing Agent
| Property | Part A | Part B | Test Method |
|---|---|---|---|
| Color, Visual | Black | Neutral | – |
| Viscosity @ 25°C, cP | 120,000 | 10 | ASTM D 2393 |
| Specific Gravity | 1.62 | 0.94 | – |
| Mix Ratio (by weight) | 7.2:1 | – | – |
| Mix Ratio (by volume) | 4.15:1 | – | – |
| Mixed Viscosity, cP | 5,000 | – | ASTM D 2393 |
| Shelf Life @ 25°C, months | 12 | – | – |
| Pot Life @ 25°C, hours | 8–10 | – | – |
Cured Properties
| Property | Value | Test Method |
|---|---|---|
| Hardness, Shore D | 85 | ASTM D 2240 |
| Coefficient of Thermal Expansion, °C | 32×10⁻⁶ | – |
| Thermal Conductivity, BTU-in/(ft²)(hr)(°F) | 4.5 | – |
| Thermal Conductivity, W/m·K | 0.648 | – |
| Glass Transition Temperature (Tg), °C | 75 ± 3 | – |
| Service Temperature, °C | -40 to +105 | – |
| Flammability | UL 94 V-0 | Pass |
| Dielectric Strength, volts/mil | 400 | ASTM D 149 |
| Dielectric Constant, 1 kHz | 5.15 | ASTM D 150 |
| Dissipation Factor, 1 kHz | 0.01 | ASTM D 150 |
| Volume Resistivity, ohm·cm | 6×10¹⁵ | ASTM D 257 |
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