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Relatherm Heat Transfer Fluids
RELATHERM HT-3 - High Temperature Heat Transfer Fluid | -2°C/28°F ~ 316°C/600°F
$369.00 - $12,075.00
In stockPrice varies by Size.
Relatherm HT-3 high temperature heat transfer fluid for service from −2 °C to 316 °C, with stated resistance to oxidation and thermal cracking.
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Description
Relatherm HT-3 is a versatile engineered thermal fluid designed for high-temperature service up to 315 °C / 600 °F . Its robust resistance to oxidation and thermal cracking delivers stable heat transfer, longer fluid life, and cleaner operation across demanding processes.
Formulated as a non-toxic, non-hazardous heat transfer fluid, Relatherm HT-3 is a proven replacement for many popular aromatic fluids. It leverages a proprietary two-stage anti-oxidation package with metal deactivators, rust inhibitors, and seal/gasket extenders to protect equipment and maintain system cleanliness.
From plastic extrusion and blow molding to general manufacturing, Relatherm HT-3 provides precise temperature control, extended uptime, and reduced maintenance costs.
Always follow manufacturer guidelines and site safety procedures when handling hot thermal fluids. Consult system OEM limits for maximum film and bulk temperatures.
Max Use Temp: 315 °C / 600 °F High Flash Point: 224 °C / 435 °F Non-Toxic / Non-Hazardous Long Service Life
Extended uptime: Advanced anti-oxidation additives minimize sludge and coke to prolong fluid life.
High-temp stability: Reliable performance to 315 °C / 600 °F with excellent resistance to thermal cracking.
Safer handling: Non-toxic, non-hazardous formulation supports cleaner operation and maintenance.
Relatherm HT-3 TDS Relatherm HT-3 SDS Relatherm Comparison Sheet
Why choose Relatherm HT-3?
Longer service life — proprietary two-stage anti-oxidation package protects against sludge and varnish.
Clean, stable operation — metal deactivators, rust inhibitors, and seal extenders help keep systems running efficiently.
High thermal ceiling — dependable heat transfer up to 315 °C / 600 °F within OEM limits.
Safer profile — non-toxic, non-hazardous formulation for simplified handling and disposal per local regulations.
Versatile replacement — suitable alternative to many aromatic fluids in plastics, molding, and general industry.
Get help selecting volumes, pumpability ranges, and best practices for charging, venting, and commissioning.
Technical Specifications
Model
Relatherm HT-3 — High Temperature Heat Transfer Fluid
Product Type
High-temperature heat transfer fluid
Maximum Use Temperature
315 °C (600 °F)
Flash Point
224 °C (435 °F)
Oxidation Resistance
Two-stage anti-oxidation additive package
Formulation Attributes
Metal deactivators, rust inhibitors, seal/gasket extenders
Toxicity/Hazards
Non-toxic, non-hazardous
Typical Applications
Plastic extrusion, blow molding, reactors, thermal loops, general manufacturing
Replacement Suitability
Can replace many popular aromatic heat transfer fluids
Handling & Disposal
Handle per hot-oil safety; dispose with waste oils per local statutes
Maintenance Guidance
Monitor oxidation, keep reservoir sealed, maintain nitrogen blanket where applicable
Manufacturing Chemical Processing Pharmaceutical Food & Beverage
FAQ
What is the maximum operating temperature for Relatherm HT-3?
The maximum use temperature is 315 °C (600 °F) . Always confirm your system’s film and bulk temperature limits.
Is Relatherm HT-3 non-toxic and non-hazardous?
Yes. Relatherm HT-3 is formulated to be non-toxic and non-hazardous , supporting safer handling and simplified disposal per local regulations.
Can Relatherm HT-3 replace aromatic heat transfer fluids?
Yes. Relatherm HT-3 is commonly used as a replacement for many popular aromatic fluids. Verify compatibility and performance with your OEM and process requirements.
How does HT-3 protect against oxidation?
It uses a two-stage anti-oxidation package plus metal deactivators and rust inhibitors to limit sludge/varnish formation and extend service life.
What applications is HT-3 suited for?
Relatherm HT-3 is popular for plastic extrusion , blow molding , reactors, and general high-temperature thermal loops requiring stable heat transfer to 315 °C.
Specifications
Frequently asked questions
What is the operating range?+
−2 °C / 28 °F up to 316 °C / 600 °F, with the manufacturer quoting high-temperature service up to 315 °C / 600 °F.
What does it resist?+
Relatherm specify robust resistance to oxidation and thermal cracking, which they link to stable heat transfer, longer fluid life and cleaner operation.
What pack sizes are available?+
4 × 1 gallon, 5 gallons, a 55 gallon drum, or a 275 gallon tote.











