Mastercool Vacuum Pump Oil 450ml Box of 6 for 90059 Series Vacuum Pumps

Mastercool Vacuum Pump Oil – Premium Deep Vacuum Performance

Keep your vacuum pump running at peak performance with Mastercool’s Premium Vacuum Pump Oil, specially refined for deep vacuum applications. Engineered to deliver maximum lubrication, thermal stability, and long-lasting pump protection, this high‑grade oil is an essential service item for every HVAC/R professional.

Why Choose Mastercool Vacuum Pump Oil?

✔ Specifically Refined for Deep Vacuum Pumps

Formulated to achieve deeper vacuum levels while reducing backstreaming and contamination in HVAC/R evacuation systems.

✔ High Thermal & Oxidation Stability

Laboratory-tested to resist breaking down under high temperatures, ensuring consistent performance in demanding service environments.

✔ Optimal Viscosity for Maximum Protection

Maintains ideal viscosity for proper lubrication of vanes and bearings, prolonging pump life and improving efficiency.

✔ Moisture-Resistant & Low Vapor Pressure

Helps prevent moisture absorption that can damage pumps while minimizing vapor pressure for cleaner system evacuation.

✔ Clear, High‑Purity Mineral Oil

A clear, colorless-to-pale-yellow refined mineral oil designed for dependable lubrication and extended pump longevity.

Available Sizes (Varies by SKU)

Mastercool vacuum pump oil is offered in multiple bottle and case size options:

• 10 oz, 16 oz, 18 oz, 24 oz, 32 oz, and 1‑gallon bottles (case quantities available).
• Popular HVAC/R service size: 6‑pack of 18 oz bottles for routine maintenance.

Technical Specifications

• Appearance: Clear, colorless to pale yellow liquid
• Viscosity: 46 cSt @ 40°C ±10%
• Flash Point: 220°C (428°F)
• Boiling Point: >300°C (572°F)
• Density: 0.86–0.87 g/cm³ @ 20°C
• Pour Point: -18°C (0°F)
• Base Oil: Refined mineral oil formulated for low vapor pressure and deep vacuum stability

Benefits for HVAC/R Technicians

• Achieves deeper vacuum levels for faster, cleaner system evacuation
• Reduces pump wear and extends service life
• Enhances pump efficiency in all climates
• Prevents contamination and maintains vacuum integrity during operation

Ideal For

• HVAC/R system evacuation
• Refrigeration service
• Single- and dual‑stage vacuum pumps
• All Mastercool pump models requiring deep vacuum oil (90059, 90065, 90066, 90612, etc.)