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SOLAR OPTIMA SERIES HYDRAULIC OIL ISO AW 37
Description
Solar Hydraulic Oil ISO AW 37 is a high-performance anti-wear hydraulic fluid formulated from premium quality mineral base oils combined with a balanced additive package to deliver excellent protection and performance. It is designed for hydraulic systems requiring a slightly higher viscosity than ISO VG 32 but lighter than ISO VG 46, making it ideal for moderate climate conditions and precise hydraulic operations.
Applications
- Industrial hydraulic systems operating in light to moderate conditions.
 - Mobile construction and agricultural equipment.
 - Hydraulic presses, injection molding machines, and CNC systems.
 - Systems requiring ISO VG 37 oils with anti-wear and rust preventive properties.
 - Recommended for use in climates where ISO 32 may be too light and ISO 46 too heavy.
 
Features & Benefits
- Outstanding Anti-Wear Protection– Helps extend the life of hydraulic pumps and components.
 - Superior Oxidation Stability– Reduces varnish and sludge formation, leading to longer service life.
 - Excellent Rust and Corrosion Prevention– Guards critical system parts, especially in humid environments.
 - Fast Air Release and Low Foaming– Ensures smooth and consistent hydraulic operation.
 - Good Demulsibility– Quickly separates water to prevent emulsification and maintain efficiency.
 - Stable Viscosity– Provides reliable lubrication under varying temperatures.
 
Health & Safety:
- Avoid prolonged contact with skin. Wear protective gloves and clothing when handling.
 - In case of skin contact, wash with soap and water. Seek medical advice if irritation persists.
 - Do not ingest. If swallowed, seek immediate medical assistance.
 - Avoid breathing oil mist. Use in well-ventilated areas.
 - Store in a cool, dry place away from direct sunlight, heat, and ignition sources.
 - Dispose of used oil responsibly in accordance with local environmental regulations.
 - Refer to the Safety Data Sheet (SDS) for detailed safety, first aid, and spill-handling instructions.
 
Key Properties
Physical Properties  | |||
Test Parameters  | Test Methods  | Units  | Typical Result  | 
Appearance  | Visual  | NONE  | Bright & Clear  | 
ISO Viscosity Grade  | NONE  | NONE  | 37  | 
Kinematic Viscosity @ 40°C  | ASTM D445  | cSt  | 36.5 – 39.5  | 
Kinematic Viscosity @ 100°C  | ASTM D445  | cSt  | ~6.0  | 
Viscosity Index  | ASTM D2270  | NONE  | ≥ 95  | 
Flash Point (COC)  | ASTM D92  | °C  | ≥ 210  | 
Pour Point  | ASTM D97  | °C  | ≤ -21  | 
Rust Test (24 hrs, synthetic seawater)  | ASTM D665 B  | NONE  | Pass  | 
Foaming Characteristics (Seq I, II, III)  | ASTM D892  | ml  | Pass (Low Foam)  | 
 











