Syltherm XLT Silicone Heat Transfer Fluid

SYLTHERM™ XLT Silicone Heat Transfer Fluid

SYLTHERM™ XLT is a silicone-based heat transfer fluid for processes that require reliable heating, cooling, and pumpability at very low temperatures. Its wide operating range makes it useful for pharmaceutical processing, freeze-drying and lyophilization, chemical processing, oil and gas operations, environmental chambers, laboratories, and pilot plants.

Key Benefits

• Good low-temperature fluidity and pumpability
• Recommended operating range of approximately -100°C to 260°C (-150°F to 500°F)
• Freeze point below -111°C (-168°F)
• High thermal stability for extended fluid life
• Low fouling potential to help maintain system performance
• Suitable for liquid-phase heating and cooling systems

Product Specifications

Viscosity, density, specific heat, thermal conductivity, and vapor pressure change with temperature. Refer to the technical data sheet or Dow's heat transfer fluid calculator when sizing pumps, heat exchangers, expansion tanks, and other system components.

Safety and Application Guidance

Review the current regional safety data sheet before handling. The linked SDS identifies SYLTHERM XLT as a flammable liquid and vapor and provides requirements for ignition control, grounding, ventilation, storage, and personal protective equipment. Confirm fluid suitability, equipment compatibility, operating limits, and system design requirements for your application.

Documents and Support

• SYLTHERM XLT Technical Data Sheet
• SYLTHERM XLT Safety Data Sheet
• Dow Heat Transfer Fluid Selection Guide

Need help selecting a heat transfer fluid or determining the correct quantity? Call Goldleaf Scientific at 888-999-7875 or email [email protected].