The 554‑311 is a 20 ml white thermal grease manufactured by RS PRO. This heatsink compound is formulated with powdered metal oxides suspended in a silicone oil base. Boasting a thermal conductivity of 0.65 W/m·K, it operates reliably across a broad temperature range (–40 °C to +200 °C). Its chemically inert, moisture-repellent, low-toxicity composition ensures excellent stability at high temperatures, minimal evaporation, and effective shock absorption.

Why choose RS PRO Heatsink Compound?

This compound offers high-performance thermal coupling and reliable long-term stability. The silicone oil base guarantees excellent heat transfer and resilience under thermal cycling, while the white color makes it easy to see where it’s applied. Plus, it’s non-toxic, chemically inert, low in evaporation, moisture-resistant, and mechanically shock-absorbent. All this adds up to a compound that ensures efficient heat dissipation and dependable performance in demanding environments.

Where Can You Use the 554‑311 Heatsink Compound, 20 ml?

Use it for effective thermal management in electronics, for example:

• Semiconductor devices (diodes, transistors, thyristors)
• CPU and GPU heat sink interfaces
• Power resistors, radiators, and thermostats
• Power supplies, UPS, automotive and telecom electronics
• Thermoelectric cooling modules and LED power supplies.