Military Fluids
MIL-PRF-87252 C
XCELTHERM® 500M COOLANT FLUID
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(Coolant Fluid, hydrolytically Stable, Dielectric)

Radco Industries, Inc.	Qualification Number: MLB 02-18
PO Box 305	Qualification Date: 09MAY2002
LaFox, IL 60147	Manufacturing Location: LaFox IL
Telephone: (800) 854-4865 Fax: (630) 232-7968

DESCRIPTION	REQUIREMENT	TYP. RESULT	TEST METHOD
Kinematic Viscosity, Centistokes
@ 40 °C, minimum	5.0 cSt	5.1 cSt	ASTM-D455
@ 100 °C, minimum	1.65 cSt	1.7 cSt	ASTM-D455
@ -40 °C, maximum	300 cSt	280 cSt	ASTM-D455
@ -54 °C, initial (1.5 hrs) maximum 3.0 hrs maximum	1300 cSt 1300 cSt	1080 cSt 1019 cSt	ASTM-D445 ASTM-D455
Gas Chromatography	, 99.9%	Result: PASS	RADCO METH
GC Additive Uniformity Test	<0.1%	Result: PASS	RADCO METH
Flash Point, minimum	150 °C	161°C	ASTM-D92
Fire Point, minimum	160 °C	173 °C	ASTM-D92
Total acid number, max.	0.20 mg KOH/gm	0.01 mg KOH/gm	ASTM-D664
Water content, maximum	50 ppm	24 ppm	ASTM-D1744
Particulate Contam. Size
5 to 15	< 10,000	1265	ASTM-F312
16 to 25	< 1,000	223	ASTM-F312
26 to 50	< 150	10	ASTM-F312
51 to 100	< 20	2	ASTM-F312
Greater than 100	< 5	0	ASTM-F312

XCELTHERM® 500M Coolant Fluid is a military qualified dielectric/cooling fluid consisting of a synthetic hydrocarbon base oil and additives. Designed for safe use in land and airborne closed loop cooling systems, XCELTHERM® 500M demonstrates excellent heat transfer fluid properties, oxidative stability, and dielectric characteristics in both military and commercial applications from -54°C (-65°F) to 135°C (275°F).
XCELTHERM® is a registered trademark of RADCO INDUSTRIES, INC.

MIL-PRF-87252C