August 14, 2026 Drawing heat away from sensitive electronic components is essential to ensure long-term device reliability and prevent thermal failure. Product# 1977 / 1977-DP is engineered to facilitate rapid heat transfer between heat-generating components and their heat sinks.
What is Silicone Heat Sink Compound 1977?
Silicone Heat Sink Compound 1977 is a high-grade thermal grease manufactured by Techspray. Formulated as a non-hardening, white semisolid paste, it fills microscopic air gaps between component surfaces and thermal dissipation hardware, significantly improving thermal conductivity and cooling efficiency across a wide temperature range.
Key Features and Benefits of Silicone Heat Sink Compound 1977
- Efficient Thermal Conductivity: Delivers a thermal conductivity rating of 0.70 W/m-K for effective heat dissipation.
- Wide Temperature Range: Maintains functional stability from -67°F to 401°F (-55°C to 205°C).
- Non-Hardening Formula: Will not crack, dry out, or harden over prolonged operational cycles.
- Easy Application: Smooth paste consistency allows straightforward dispenser or manual application.
- Environmentally Safe: Non-ozone depleting formulation engineered for cleaner industrial use.
Target Applications
The stability and ease of application make Silicone Heat Sink Compound 1977 an ideal thermal interface material for various electronic assemblies, including:
- Thermocouple Wells & Thermistors: Ensures accurate temperature sensing by eliminating insulating air gaps.
- Heating Elements & Calrods: Facilitates efficient thermal transfer in industrial heating units.
- Power Electronics: Thermally couples transistors, diodes, and power modules to aluminum or copper heat sinks.
Application Guidelines
1. Surface Preparation
Clean both mating surfaces thoroughly to remove dust, grease, and old thermal interface residues prior to application. Ensure surfaces are completely dry.
2. Application Process
Apply a thin, uniform layer of the compound to the contact surface. Press the component firmly against the heat sink to spread the paste evenly, displacing any trapped air. Avoid applying excessive amounts, as a thin layer provides optimal thermal transfer.
Technical Specifications
| Property | Specification |
|---|---|
| Product Name / Part Number | Silicone Heat Sink Compound / 1977-DP (4 oz. tube) |
| Physical State / Appearance | Semisolid / White paste |
| Thermal Conductivity | 0.70 W/m-K |
| Operating Temperature Range | -67°F to 401°F (-55°C to 205°C) |
| Specific Gravity | 2.400 (water=1) |
| Flashpoint | >400ºF (204ºC) |
| Freezing Point | -40ºF (-40ºC) |
| Vapor Pressure | <0.1 mmHg |
| Solubility in Water | Insoluble |
| Environmental Compliance | Non-Ozone Depleting |
| Shelf Life | 5 Years |
Conclusion & Support
For reliable, non-cracking thermal interface protection across demanding operating conditions, Silicone Heat Sink Compound 1977 is an essential industrial thermal paste. For technical assistance, pricing, or product availability, please visit Contact – LORIOT INDUSTRIAL to reach our specialist team.
