Skydrol™ 500B-4 is a phosphate ester-based, fire-resistant hydraulic fluid engineered for commercial, military, and general aviation applications. Known for its exceptional thermal stability, corrosion resistance, and long service life, Skydrol 500B-4 is one of the most widely used hydraulic fluids in the aerospace industry.

Performance highlights include:

• Fire-resistant phosphate ester formulation, providing superior flame suppression and operational safety

• Excellent thermal and oxidative stability, reducing fluid degradation and component wear

• Outstanding corrosion and rust protection, extending the lifespan of pumps, valves, and actuators

• Low-temperature performance, ensuring smooth hydraulic operation in all conditions

• Approved by major aircraft OEMs, making it a trusted choice for global aviation fleets

Packaged in a case of (24) 1-quart cans, this format is ideal for aviation maintenance crews, repair shops, and MRO operations that require smaller, controlled quantities for top-offs and testing. Skydrol 500B-4 ensures consistent performance, reliability, and fire resistance in demanding aircraft systems.