TL;DR: Choose HI-REV Therma Oil 32 or 320 for Malaysian rubber and plastic industries requiring stable performance up to 340°C
HI-REV Therma Oil maintains thermal stability by resisting molecular cracking at high surface temperatures. The paraffinic mineral base contains oxidation properties that inhibit the formation of sludge and carbon deposits within the heat transfer circuit. This specific formulation ensures the fluid remains thin enough for prompt circulation during cold start-ups in industrial environments. The fluid provides consistent heat transfer rates by keeping internal pipe surfaces clean from insulating residue.
ISO Viscosity Grades: Available in 32 and 320.
Kinematic Viscosity @ 40°C: 30.4 cSt (ISO 32) and 310 cSt (ISO 320).
Kinematic Viscosity @ 100°C: 5.2 cSt (ISO 32) and 24 cSt (ISO 320).
Flash Point (ASTM D92): 228°C for ISO 32 and 270°C for ISO 320.
Pour Point: -12°C (ISO 32) and -9°C (ISO 320).
Maximum Recommended Surface Temperature: 340°C.
Specific Gravity: 0.865 g/ml.
Chemical Composition: Highly refined mineral base oil (>60%) with proprietary additives.
This fluid is used in closed-loop heat transfer systems across the rubber curing and plastic extrusion sectors in Malaysia. It is suitable for asphalt heating, dry cleaning machinery, and industrial drying processes where surface temperatures do not exceed 340°C. It should not be used in open systems where the oil is directly exposed to air at high temperatures, as this accelerates oxidation. It is also unsuitable for food-grade applications requiring NSF H1 certification.
The paraffinic mineral structure provides a high degree of saturation, which limits the chemical sites available for oxygen to react with the oil. By reducing oxidation, the fluid prevents the buildup of carbonaceous soot that typically acts as a thermal insulator on heater coils. The high flash point (up to 270°C) provides a necessary safety margin for high-temperature operations. In Malaysia's tropical climate, the low-temperature flow characteristics ensure the oil reaches operating pressure quickly without excessive strain on pump motors during initial daily startup.
Suitable For: Plant engineers in rubber and plastic manufacturing requiring a non-hazardous, stable mineral oil for closed systems.
Suitable For: Facilities operating within Malaysia's DOSH (JKKP) regulatory framework for steam boilers and unfired pressure vessels.
Not Suitable For: Operations requiring food-contact safety standards.
Not Suitable For: Systems operating consistently above a 340°C surface temperature, which would lead to rapid thermal degradation.
Ensure the heat transfer system is clean and free of moisture or old oxidized sludge before charging.
Fill the system with HI-REV Therma Oil, ensuring the expansion tank is at the correct level to allow for fluid expansion at operating temperatures.
Start the circulation pump before activating the heat source to prevent localized overheating of the oil.
Gradually increase the temperature to the required operating set point, not exceeding 340°C on any heating surface.
Monitor oil condition regularly through laboratory analysis to check for changes in viscosity or flash point.
Overheating at Startup: Activating high-heat burners before the oil is fully circulating can cause localized "cooking" of the oil, leading to carbon buildup.
Water Contamination: Allowing rainwater or moisture into storage drums in Malaysian facilities can cause pump cavitation or steam explosions in high-temperature systems.
Mixing Grades: Mixing ISO 32 and ISO 320 can result in unpredictable viscosity, affecting pump performance and heat transfer efficiency.
GHS Classification: Not classified as a hazardous chemical under Malaysian PMP (Classification, Labelling and Safety Data Sheet of Hazardous Chemicals) Regulations.
Transport: Not regulated for transport via ICAO/IATA, ADR, or IMDG.
Handling: Wear chemical goggles and long-sleeved shirts to prevent skin contact and defatting.
Storage: Store in secondary containment areas away from strong oxidizing agents and acids.
Disposal: Dispose of used oil (Scheduled Waste code SW 305/306) through licensed DOE (Jabatan Alam Sekitar) contractors.
What is the maximum operating temperature for HI-REV Therma Oil? The oil is recommended for services where the surface temperature reaches up to 340°C.
Is this oil hazardous to health? It is not classified as hazardous under GHS, although prolonged skin contact should be avoided as it can cause skin defatting.
Can this oil be used in the food industry? While it is used in industrial processes, it is a mineral-based oil and does not hold NSF H1 food-grade certification.
Does the oil require special fire-fighting equipment? Suitable extinguishing media include carbon dioxide, foam, or dry chemicals; water jets should not be used.
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