Thermaflo® Flushing Fluid

Thermaflo® Flushing Fluid (TFF) is a specialized aromatic solvent engineered for the cleaning and restoration of fouled heat transfer systems. This low-cost, high-solvency fluid delivers exceptional tar-dissolving and carbon-removal performance comparable to flammable solvents like toluene—but without the associated safety hazards, toxicity concerns, or regulatory complications. The aromatic hydrocarbon composition provides superior “wetting” characteristics that penetrate beneath baked-on carbon deposits and hardened sludge, breaking the bond between contaminants and metal surfaces for thorough removal. Unlike aggressive chemical cleaners that can damage system components or require extensive drying procedures, TFF is fully compatible with organic heat transfer fluids and standard system materials, allowing immediate refill after draining. Any residual flushing fluid remaining in the system is miscible with replacement heat transfer fluids and will safely vent through the expansion tank during normal heat-up to operating temperature.

• Powerful Solvent Action: Aromatic composition delivers tar-dissolving performance equivalent to flammable solvents while maintaining a safe flash point above 135°C (275°F).
• Superior Carbon Removal: Exceptional metal-wetting properties allow the fluid to penetrate beneath hard carbon deposits, lifting baked-on residues from heat transfer surfaces.
• Fast & Simple Procedure: Drain, fill, heat to just below flash point (140°C/280°F), circulate for 8-12 hours, drain, and refill—no complex chemical cleaning protocols or drying procedures required.
• Full System Compatibility: Miscible with most organic heat transfer fluids; any residual flushing fluid vents safely during system startup, eliminating concerns about contamination.