Product Description

Thermaflo® SH is a reclaimed synthetic heat transfer fluid composed of dibenzyl toluene isomers, engineered for demanding liquid-phase thermal management in closed-loop, non-pressurized systems. This aromatic-based fluid delivers outstanding performance across a wide operating envelope from -5°C to 350°C (-23°F to 662°F), with intermittent film temperature capability to 380°C (716°F). The dibenzyl toluene chemistry provides inherent thermal resilience—the planar aromatic ring structure with conjugated double bonds creates molecular stability that resists breakdown at sustained high temperatures. As a direct-compatible makeup fluid for existing dibenzyl toluene systems, Thermaflo® SH offers a cost-effective solution for maintaining or expanding thermal fluid inventory.
- Wide Operating Envelope: Functions reliably from -5°C to 350°C in liquid phase without system pressurization, eliminating the complexity and cost of pressure-rated equipment.
- Exceptional Flash Point: At 200°C (392°F), provides substantial safety margins—one of the highest flash points available in synthetic heat transfer fluids.
- Minimal Vapor Pressure: At only 4 psi at 316°C (600°F), enables atmospheric operation at elevated temperatures while reducing vapor losses.
- Cold-Start Capability: Pumpable down to -5°C (-23°F), allowing system start-up without auxiliary heat tracing in most temperate climates.
Applications
Reactor Heating
Polymerization Vessels
Commercial Baking Systems
Distillation Columns
Industrial Dryers
Heat Exchangers
Heat Recovery Systems
Plastics Processing
Chemical Manufacturing
Pharmaceutical Production
Fine Chemical Synthesis
Heating-Cooling Cycles
Benefits
Extended Service Life
High Flash Point Safety
Atmospheric System Operation
Cold-Start Without Heat Tracing
Non-Corrosive to Common Alloys
Direct Compatibility with Dibenzyl Toluene Systems
Cost-Effective Reclaimed Solution
Low Maintenance Requirements
Product Availability
5 Gal (20 kg)
55 Gal Drum (220 kg)
Bulk (Totes / Tankers)
Product Data
| Property | Specification |
| Appearance | Colorless to Pale Yellow |
| Composition | Dibenzyl Toluene |
| Moisture Content (ppm) | 150 |
| Flash Point, COC | 392°F (200°C) |
| Autoignition Temperature | 842°F (450°C) |
| Kinematic Viscosity @ 40°C (cSt) | 16.5 |
| Kinematic Viscosity @ 100°C (cSt) | 3.1 |
| Density @ 20°C (lbs/gal) | 8.70 |
| Specific Gravity @ 20°C | 1.044 |
| Freeze Point | -29°F (-34°C) |
| Pumpability Limit (KV=400 cSt) | -23°F (-5°C) |
| Bulk Temperature Range | -23°F–662°F (-5°C–350°C) |
| Maximum Film Temperature | 716°F (380°C) |
| Total Acid Number (Max) | <0.05 mg KOH/g |
| Thermal Conductivity (@ 600°F) | 0.053 BTU/ft/hr |
| Vapor Pressure (@ 600°F) | 4 psi |
| Average Molecular Mass | 286 |
