Product Description

CALFLO™ XR is a premium synthetic blend heat transfer fluid engineered for extended temperature range operation in non-pressurized, liquid-phase closed-loop systems. This advanced formulation combines severely hydrocracked mineral base oils with synthetic polyalphaolefin (PAO) technology to deliver exceptional performance from startup temperatures as low as -27°C (-17°F) to continuous bulk operating temperatures up to 288°C (550°F). The ultra-low pour point (below -40°C/-40°F) enables cold-weather dispensing directly from drums and totes without preheating, while also eliminating the need for costly heat tracing and insulation in outdoor installations. CALFLO XR starts with 99.9% pure base fluids produced using Petro-Canada’s proprietary HT purity hydrocracking process, resulting in a crystal-clear fluid virtually free of aromatic impurities that can degrade performance and create workplace health concerns. Enhanced with specially selected oxidation inhibitors, this thermally stable fluid resists degradation, extends service life, and reduces maintenance costs compared to conventional mineral-based heat transfer fluids.
- Extended Temperature Range: Operates continuously from -27°C (-17°F) startup to 288°C (550°F) bulk temperature—ideal for systems requiring both heating and cooling capability.
- Ultra-Low Pour Point: Pour point below -40°C (-40°F) enables cold-weather dispensing and eliminates costly heat tracing requirements in outdoor applications.
- Superior Oxidative Stability: High resistance to oxidative thickening extends fluid life and reduces sludge formation, lowering operating and maintenance costs.
- Low Vapor Pressure: Minimizes fluid losses from control valves and pipe flanges, reducing top-up costs and improving workplace safety.
Applications
Chemical Processing
Pharmaceutical Manufacturing
Exothermic Reactions
Endothermic Reactions
Refinery Operations
Grease Plants
Plastic Molding Systems
Plastics Extrusion
Injection Molding
Die Casting
Temperature Control Units
Metal Processing
Cold Climate Installations
Outdoor Heat Transfer Systems
Process Heating & Cooling
General Manufacturing
Benefits
Extended Temperature Range
Ultra-Low Pour Point
Excellent Cold Pumpability
High Thermal Efficiency
Superior Oxidative Stability
Low Vapor Pressure
Reduced Fluid Losses
Extended Service Life
Minimal Sludge Formation
Non-Toxic Classification
Odorless Operation
No Special Handling Required
99.9% Pure Base Oils
Reduced Maintenance Costs
Eliminates Heat Tracing Requirements
Product Availability
5 Gal (20 L)
55 Gal Drum (200 L)
Bulk (Totes / Tankers)
Product Data
| Property | Test Method | Specification |
|---|---|---|
| Appearance | Visual | Clear Liquid |
| Fluid Type | — | Synthetic Blend (PAO + Mineral) |
| Maximum Bulk Temperature | — | 288°C (550°F) |
| Minimum Startup Temperature | — | -27°C (-17°F) |
| Pour Point | ASTM D 5950 | < -40°C (-40°F) |
| Flash Point (COC) | ASTM D 92 | Contact for TDS |
| Fire Point | ASTM D 92 | Contact for TDS |
| Autoignition Temperature | ASTM E 659 | Contact for TDS |
| Kinematic Viscosity @ 40°C | ASTM D 445 | Contact for TDS |
| Kinematic Viscosity @ 100°C | ASTM D 445 | Contact for TDS |
| Solubility in Water | — | Insoluble |
| Toxicity Classification | — | Non-Toxic (OSHA, WHMIS, DPD) |
Note: CALFLO™ XR is designed for non-pressurized, liquid-phase closed heat transfer systems only. For open systems or specialized applications, consult technical support. Monitor fluid condition regularly—track changes in viscosity, acidity, flash point, and insoluble content to optimize fluid life. To maximize system efficiency and fluid life, Petro-Canada recommends system cleaning and flushing with CALFLO™ Cleaning Fluid and CALFLO™ Flushing Fluid to remove contaminants, sludge, and varnish prior to charging with new fluid. CALFLO XR is combustible when heated; keep away from heat sources, sparks, and open flames. Not classified as toxic under OSHA, WHMIS, or DPD criteria. Empty drums are readily accepted by drum reconditioners. Consult the Safety Data Sheet (SDS) for complete hazard information, exposure limits, first aid measures, and handling precautions. CALFLO™ is a trademark of Petro-Canada Lubricants.
