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ESSELTHERM GL Polyalkylene Glycol Heat Transfer Fluid (500°F)

ESSELTHERM GL Polyalkylene Glycol Heat Transfer Fluid (500°F)

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A polyalkylene glycol (PAG) based heat transfer fluid rated to 260°C (500°F) with a 249°C (480°F) flash point and a proprietary additive system for longevity and cleanliness in extreme oxidation environments, including open-bath applications.

Used in open heating baths and vented systems, textile and finishing lines, laboratory and pilot-plant heating, and any application where a non-fouling, high-flash-point glycol fluid is preferred over mineral oil.

Available to order from SDI Chemicals. Technical data sheet, SDS and compliance documentation are provided on request; freight and lead time are quoted to your destination, with flexible order quantities. Request a quote with your system volume and delivery ZIP.

Key features

  • Maximum operating temperature 260°C (500°F)
  • High flash point of 249°C (480°F)
  • Suited to extreme oxidation environments, including open-bath systems
  • Polyalkylene glycol-based thermal fluid with proprietary additive system
  • Low pour point of -40°F for cold-start capability

Specifications

Temperature ratings

Max bulk / use temperature 500°F
Max film temperature 550°F
Pour point, ASTM D445 -40°F

Safety data

Flash point, ASTM D92 480°F
Fire point, ASTM D92 505°F
Autoignition, ASTM E-659-78 690°F

Thermal properties

Thermal expansion coefficient 0.0377 %/°F
Thermal conductivity, 100°F / 212°F / 399°F / 500°F 0.105 / 0.101 / 0.095 / 0.092 BTU/hr·ft·°F
Heat capacity, 100°F / 212°F / 399°F / 500°F 0.472 / 0.488 / 0.514 / 0.528 BTU/lb·°F

Physical properties

Viscosity, ASTM D445, 40°F / 100°F / 260°F 262.67 / 46.07 / 4.71 cSt
Density, ASTM D1298, 100°F / 212°F / 399°F / 500°F 57.46 / 56.35 / 54.53 / 53.54 lb/ft³
Vapor pressure, ASTM D2879, 100°F / 212°F / 399°F / 500°F 0.04 / 0.13 / 0.35 / 0.51 psia
Distillation range, ASTM D2887, 10% / 90% 694°F / 957°F
Specific gravity @ 60°F 0.963
  • Brand: ESSELTHERM (distributed by SDI Chemicals)
  • Product code: ESSELTHERM GL
  • Pack size: drums and totes standard; pails and bulk tankers quoted on request
  • Documentation: TDS / SDS available on request
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