Description
Product Description
PETRO-THERM™ is a premium mineral oil-based heat transfer fluid engineered for non-pressurized, liquid-phase closed-loop systems operating at bulk fluid temperatures up to 315°C (599°F). Manufactured from highly refined, 99.9% pure base oils using HT purity processing technology, this thermal fluid delivers exceptional clarity (color <0.5 ASTM D1500), low carbon residue (0.03 wt%), and outstanding resistance to oxidative and thermal degradation. The carefully balanced formulation provides excellent thermal efficiency across a wide operating range while maintaining low vapor pressure to prevent system pressurization and reduce fluid losses. PETRO-THERM™ offers an economical alternative to synthetic and aromatic heat transfer fluids without compromising performance or service life. Not classified as toxic under OSHA, WHMIS, or DPD criteria, this fluid provides a safer working environment compared to many chemical-based alternatives. For systems requiring cold-weather startup capability, PETRO-THERM™ PPD offers enhanced low-temperature performance with a pour point of -39°C (-38°F).
- High-Temperature Performance: Operates reliably at bulk fluid temperatures up to 315°C (599°F) with maximum film temperatures to 340°C (644°F).
- Exceptional Purity: Manufactured from 99.9% pure base oils with color <0.5 and carbon residue of only 0.03 wt% for clean, deposit-free operation.
- Extended Fluid Life: Superior oxidation and thermal stability minimizes degradation, sludge formation, and fluid makeup requirements.
- Low Vapor Pressure: Negligible vapor pressure at operating temperatures prevents system pressurization and reduces fluid losses.
Applications
Asphalt Plants · Hot Mix Terminals · Wood Processing · Dry Kilns · Institutional Laundry · Commercial Heating Systems · Marine Applications · General Process Heating · Die Casting · Plastics Processing · Chemical Manufacturing · Food Processing Equipment · Textile Manufacturing · Paper & Pulp Processing · Industrial Ovens · Laminating Equipment
Benefits
High Thermal Efficiency · Long Service Life · Low Maintenance Costs · Minimal Sludge Formation · Reduced Coking · Non-Toxic Classification · Low Vapor Pressure · Excellent Pumpability · Corrosion Resistance · Easy System Startup · Economical Pricing · Wide Temperature Range · High Flash Point · Recyclable · Drum Reconditioner Accepted
Product Availability
Drum (205L) · IBC Tote (1040L) · Bulk
Product Data
| Property | Test Method | PETRO-THERM | PETRO-THERM PPD |
| Appearance | Visual | Clear, Water-White | Clear, Water-White |
| Color | ASTM D 1500 | <0.5 | <0.5 |
| Maximum Bulk Temperature | — | 315°C (599°F) | 315°C (599°F) |
| Pour Point | ASTM D 5950 | -18°C (0°F) | -39°C (-38°F) |
| Flash Point (COC) | ASTM D 92 | 225°C (437°F) | 227°C (441°F) |
| Fire Point | ASTM D 92 | 245°C (473°F) | 245°C (473°F) |
| Autoignition Temperature | ASTM E 659 | 352°C (666°F) | 352°C (666°F) |
| Kinematic Viscosity @ 40°C | ASTM D 445 | 35.8 cSt | 36.5 cSt |
| Kinematic Viscosity @ 100°C | ASTM D 445 | 5.7 cSt | 5.8 cSt |
| Kinematic Viscosity @ 316°C | ASTM D 445 | 0.7 cSt | 0.7 cSt |
| Average Molecular Weight | — | 379 | 379 |
| Total Acid Number (TAN) | ASTM D 664 | <0.1 mg KOH/g | <0.1 mg KOH/g |
| Sulfur Content | ASTM D 4294 | 0.0326 wt% | 0.0326 wt% |
| Conradson Carbon Residue | ASTM D 189 | 0.03 wt% | 0.03 wt% |
| Coefficient of Thermal Expansion | — | 0.0932 %/°C | 0.0932 %/°C |
| Density @ 15°C | — | 0.869 kg/L (54.3 lb/ft³) | 0.869 kg/L (54.3 lb/ft³) |
| Distillation 10% | ASTM D 2887 | 376°C (709°F) | 376°C (709°F) |
| Distillation 50% | ASTM D 2887 | 423°C (793°F) | 423°C (793°F) |
| Distillation 90% | ASTM D 2887 | 471°C (880°F) | 471°C (880°F) |
Thermal Properties at Operating Temperatures
| Property | 15°C (59°F) | 38°C (100°F) | 260°C (500°F) | 316°C (600°F) |
| Density | 0.869 kg/L (54.3 lb/ft³) | 0.855 kg/L (53.4 lb/ft³) | 0.714 kg/L (44.6 lb/ft³) | 0.679 kg/L (42.4 lb/ft³) |
| Thermal Conductivity | 0.143 W/m·K | 0.142 W/m·K | 0.130 W/m·K | 0.128 W/m·K |
| Heat Capacity | 1.89 kJ/kg·K | 1.97 kJ/kg·K | 2.69 kJ/kg·K | 2.88 kJ/kg·K |
| Vapor Pressure | 0.00 kPa | 0.00 kPa | 2.65 kPa | 11.44 kPa |
Note: PETRO-THERM™ is designed for closed-loop, non-pressurized, liquid-phase heat transfer systems only. Do not use in open systems without consulting technical support. Monitor fluid condition regularly—the rate of change in physical characteristics (viscosity, acidity, flash point, insolubles) is more significant than absolute values. Actual service life depends on system design, operating temperatures, and maintenance practices. For cold-weather applications requiring startup below -18°C (0°F), specify PETRO-THERM™ PPD with pour point depressant. This fluid is combustible; keep away from heat sources, sparks, and open flames. Used fluid may be recycled through authorized collection points or, where permitted, used in BTU recovery systems. Consult the Safety Data Sheet (SDS) for complete hazard information, exposure limits, first aid measures, and handling precautions. PETRO-THERM™ is a trademark used under license.
