Leecast 15-95-3
- Chemical Family
- Epoxy & Epoxy Derivatives
LEECAST 15-95-3 is a two-part epoxy casting compound designed for encapsulation of high voltage components. Used in UL-listed applications requiring excellent electrical performance, heat dissipation,and flame retardance, it provides a system that is non-burning and highly resistant to thermal cycling with minimal effect on components.
Product families
- Epoxies
Other characteristics
- Brand
- Leecast
- Polymer Name
- Epoxy Resins & Compounds
- Volume Resistivity
- 2000000000000.0 - 2000000000000.0 Ohm-m
- Safety
Some individuals may be sensitive to epoxy compounds. Care should be taken to minimize contact. If skin contactoccurs wash with soap and water. If eye contact occurs, flush with copious quantities of water. Keep containers closed when not in use to prevent contamination. Minimizeexposure to Part B to air and moisture.
- Appearance
- Blue liquid, Tan liquid
- Shelf LIfe
- 12 months
- Cure
- Chemical Cure
- Heat Cure
- Technology
- Plastics
- Handling and Mixing
LEECAST 15-95-3 can be mixed, deaired and cast at normal ambient temperatures of 70 – 85oF. For lower viscosity, Part A can be warmed to around 100oF before mixing. Preheating of the component to no more than 120oF will also aid in the filling of smaller components. Measure out the proportionate quantities of Parts A and B and mix thoroughly, scraping the sides and bottom of the container. De-air using vacuum and pour the blended epoxy in the mold. Gel at room temperature for 4 – 6 hours, then post-cure for 1 hour at about 80oC.
- Plastics and Elastomers Functions
- Resin
Technical data
Table 1 of 3
14 rows| Characteristic | Value | Unit |
|---|---|---|
| Hardness | 91 | Shore D |
| Viscosity (25ºC) (Part A) | 50000 | cps |
| Density (PART A) | 13 | lbs./gal |
| Viscosity (25ºC) (Part B) | 25 | cps |
| Density (PART B) | 7.7 | lbs./gal |
| Tensile Strength | 9800 | psi |
| Compressive Strength | 22000 | psi |
| Flexural Strength | 14500 | psi |
| Shrinkage | 0.25 | % |
| Heat Deflection Temperature | 95 | ºC |
| Coefficient of Expansion (25 -100ºC) (in/in/ºC x 10-6) | 30 | — |
| Specific Gravity | 1.6 | g/ml |
Table 2 of 3
15 rows| Characteristic | Value | Unit |
|---|---|---|
| Volume Resistivity (25°C) | min. 2.0 x 10^14 | ohm-cm |
| Volume Resistivity (80°C) | 4.4 x 10^13 | ohm-cm |
| Volume Resistivity (100°C) | 1.1 x 10^12 | ohm-cm |
| Volume Resistivity (125°C) | 8.7 x 10^10 | ohm-cm |
| Volume Resistivity (150°C) | 1.3 x 10^10 | ohm-cm |
| Dissipation Factor (15K Hz) (80°C) | 0.016 | — |
| Dissipation Factor (15K Hz) (80°C) | 5.72 | — |
| Dissipation Factor (15K Hz) (100°C) | 0.016 | — |
| Dissipation Factor (15K Hz) (100°C) | 5.85 | — |
| Dissipation Factor (15K Hz) (125°C) | 0.021 | — |
| Dissipation Factor (15K Hz) (125°C) | 6.11 | — |
| Dissipation Factor (15K Hz) (150°C) | 0.019 | — |
Table 3 of 3
6 rows| Characteristic | Value | Unit |
|---|---|---|
| Mix Ratio, by weight (PART A) | 100 | — |
| Work Life (25ºC) (PART A) | 60 | min |
| Cure Schedule (PART A) | Gel at room temperature for 4 - 6 hours, then postcure1 hour at 80oC | — |
| Mix Ratio, by weight (PART B) | 100 | — |
| Work Life (25ºC) (PART B) | 8 | min |
| Cure Schedule (PART B) | Gel at room temperature for 4 - 6 hours, then postcure1 hour at 80oC | — |
