Heat Transfer Oil Thermal Fluid L-QB 300

SINOPEC ONLINE / HEAT TRANSFER FLUIDS L-QB 300 SYNTECH HEAT TRANSFER OIL Sinopec L-QB 300 SynTech Heat Transfer Oil is a high-performance mineral heat transfer fluid formulated using refined narrow-fraction mineral base oils and advanced additives with excellent detergency-dispersancy, oxidation resistance and thermal stability. It is engineered for use in closed and open heat transfer systems operating at bulk oil temperatures up to 290°C. Designed for demanding industrial thermal systems, L-QB 300 delivers excellent resistance to cracking, sludge formation and thermal degradation at elevated operating temperatures. The formulation provides efficient heat transfer, reliable circulation and long service life across continuous industrial heating applications. Widely used across chemical processing, textile manufacturing, synthetic fibre production, resin manufacturing, food processing and timber industries, Sinopec L-QB 300 provides a technically competitive alternative to leading international heat transfer fluids while offering full UK technical support and supply availability. SYSTEM TYPE Mineral heat transfer fluid MAX BULK TEMPERATURE 290°C FLASH POINT 203°C (COC) POUR POINT Below -55°C THERMAL PERFORMANCE KEY FEATURES HIGH TEMPERATURE STABILITY Excellent oxidation resistance and thermal stability help prevent oil cracking, breakdown and deposit formation under continuous high-temperature operation, extending fluid and system service life. EFFICIENT HEAT TRANSFER High specific heat and thermal conductivity enable rapid and efficient heat transfer, improving thermal system efficiency and reducing operating costs across industrial heating applications. LOW TEMPERATURE FLUIDITY Excellent low-temperature flow characteristics and a pour point below -55°C support reliable cold-start circulation and stable fluid movement during start-up conditions. SYSTEM PROTECTION Strong rust and corrosion resistance help protect pipework, heaters, pumps and circulation systems while reducing maintenance requirements and improving long-term reliability. INDUSTRIAL APPLICATIONS Recommended Applications Closed heat transfer systems Open circulation thermal systems Textile finishing equipment Synthetic fibre production Food processing systems Timber drying and heating systems Chemical processing plants Resin manufacturing operations INDUSTRY STANDARDS APPROVALS & COMPATIBILITY DIN | 51522-1998 GB | 23971-2009 PRODUCT EQUIVALENTS CROSS REFERENCE Shell | Heat Transfer Oil S2 Mobil | Therm 603 Castrol | Perfecto HT 5 TotalEnergies | Seriola 1510 Fuchs | Renolin Therm 320 Chevron | Texatherm HT 22 BP | Transcal N Petro-Canada | Calflo AF Valvoline | Heat Transfer Fluid Paratherm | NF Eastman | Therminol 55 Global Heat Transfer | Globaltherm OM TECHNICAL SUPPORT TECHNICAL RESOURCES CROSS REFERENCES Lubricant Cross Reference Guide PRODUCT CATALOGUE Sinopec Lubricants Product Catalogue INDUSTRIAL LUBRICANTS Browse Industrial Lubricants PRODUCT RANGE Browse Heat Transfer Fluids