COOLELF AUTO SUPRA -26°C
Product Description
COOLELF AUTO SUPRA -26°C is a high-performance, long-life coolant based on monoethylene glycol and organic corrosion inhibitors. It is designed for use in all types of combustion engines, including those in cars, vans, trucks, buses, construction machines, and agricultural tractors.
Key Benefits
- Freezing Protection: Effective down to -26°C.
- Extended Service Life:
- Trucks: 650,000 km / 8,000 hours / 5 years.
- Cars: 250,000 km / 5 years.
- Year-Round Usability: Suitable for use in all seasons.
- Compatibility: Suitable for cast iron, aluminium engines, and radiators made of aluminium or copper alloy.
- Environmentally Responsible: Contains additives to prevent accidental ingestion and is classified as special industrial waste for proper disposal.
Performance Characteristics
- Corrosion Protection: Provides excellent protection against corrosion, erosion, and cavitation, especially for aluminium water pumps.
- Deposit-Free Operation: Wholly organic additives prevent deposit formation, maintaining clean surfaces and optimized heat transfer.
- Chemical Properties:
- pH: 7-8.5
- Alkalinity: Neutralizes acids from combustion gases.
- Foam Resistance: Stable and minimal foaming.
- Hard Water Compatibility: Up to 40°F.
Physical and Chemical Properties
- Colour: Pink to fluorescent orange
- Density at 15°C: 1.053
- pH: 8.6
- Alkalinity Reserve (pH 3.5): 2.2 ml HCl 0.1N
- Temperature at First Ice Crystals: -27°C
- Boiling Temperature: 106°C
Corrosion Test Results
1. ASTM D1384 (Glassware Corrosion Test):
- COOLELF AUTO SUPRA -26°C demonstrates significantly lower weight loss compared to ASTM D3306 limits, indicating excellent protection for metals like copper, solder, brass, steel, cast iron, and aluminium.
2. ASTM D4340 (Aluminium Heat Rejection Test):
- COOLELF AUTO SUPRA -26°C shows a weight loss of less than 0.2 mg/cm² per week, far below the ASTM D3306 limit of 1.0 mg/cm² per week.
3. ASTM D2570 (Simulated Service Test):
- COOLELF AUTO SUPRA -26°C shows superior performance with minimal weight loss for metals like copper, solder, brass, steel, cast iron, and aluminium.
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