Eastman Skydrol 500B-4

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 1977 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. This has given the product enormous popularity for use in work shops and indoor test stands.

Description

Typical Properties

Property Test Method Typical Value, Units
General
Acid Number (mg KOH/g) 0.10 Maximum
Appearance Clear, oily liquid
Autoignition Temperature ASTM D 2155 460 °C (860 °F) Minimum
Color Purple, essentially equivalent to intensity and hue standard
Elemental Content
Calcium 10 ppm, Maximum
Chlorine 50 ppm, Maximum
Potassium 30 ppm, Maximum
Sodium 10 ppm, Maximum
Sulfur 1185-1460 ppm
Fire Point (COC) 191 °C (375 °F) Minimum
Flash Point (COC) 177 °C (350 °F) Minimum
Moisture 0.20 % Maximum
Particle Contaminationa
15-25 micron size 5,700 Maximum
25-50 micron size 1,012 Maximum
50-100 micron size 180 Maximum
5-15 micron size 32,000 Maximum
Over 100 micron size 32 Maximum
Pour Point -62 °C (-80 °F) Maximum
Specific Gravity @ 25°C/25°C 1.050-1.062
Viscosity
@ 38°C (100°F) 11.40-12.40 cSt
@ -54°C (-65°F) 2900 cSt Maximum
@ 99°C (210°F) 3.68-4.00 cSt
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Shipping & Delivery

At AMAC, we take pride in delivering premium branded lubricants to your doorstep safely, promptly, and in their original sealed packaging. Every shipment reflects our commitment to quality, reliability, and customer satisfaction.

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With a well-established logistics network, we offer nationwide delivery across Pakistan. From industrial sites to retail outlets, our team ensures your lubricants arrive on time and in perfect condition.

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Once your order is confirmed, we prepare and dispatch it within 24 to 48 hours. Delivery time may vary depending on your location and order size, but we always aim to provide the fastest and most efficient service possible.

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