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Skydrol Hydraulic Fluid 500-B4

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Overview

The Skydrol 500 series of fluids has the longest service history among phosphate ester products. The first version, Skydrol 500, was introduced in 1952. Steady improvements to the formulation led in 1978 to the current version, Skydrol 500B-4 which contains the same breakthrough anti erosion additive and acid scavenger found in Skydrol LD-4. Skydrol 500B-4 is the most worker friendly of the aviation phosphate esters; it is least irritating to skin and less prone to form mists which can be irritating to the respiratory tract. This has given the product enormous popularity for use in work shops and indoor test stands.
   
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov

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Reviews

Make sure to wear gloves and protective eyewear. Wash your hands before going to restroom.

Excel T Verified Purchase

SKYDROL 500B-4 HYDRAULIC FLUID FIRE RESISTANT QT

March 12, 2022

Eddie S Verified Purchase

SKYDROL 500B-4 HYDRAULIC FLUID FIRE RESISTANT 5 GAL

February 8, 2022

They can get it when no one else can. Otherwise, who likes Skydrol? Its a necessary evil, but no one likes it.

Jason K Verified Purchase

SKYDROL 500B-4 HYDRAULIC FLUID FIRE RESISTANT 5 GAL

January 24, 2022

Received in good condition, a few minor dents but no leaks, double boxed. Other sources were sold out, was glad to find it in stock at Aircraft Spruce!

Jason J
March 22, 2021

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is Skydrol 500b-4 in resealable cans?

No. We do not have this in resealable cans.

Q: How long is SkyDrol 500 B-4 good before expiring?

Shelf life is 10 years.

Q: WHERE CAN I FIND THE DATE OF MANUFACTURE OF THE 1 GALLON CAN AND HOW TO READ IT?

The batch and date should be etched on the cap near the front.

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