Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

COMSTAR Synthetic Oil: Polyol Ester, 1 qt, 300 SUS, -39°C Pour Point - Polyol Ester Synthetic Refrigeration Oils
COMSTARPolyol Ester Synthetic Refrigeration Oils

COMSTAR Synthetic Oil: Polyol Ester, 1 qt, 300 SUS, -39°C Pour Point

The COMSTAR Synthetic Oil is a polyol ester synthetic refrigeration oil, ISO-68 viscosity grade, supplied in a 1-quart container. It has a viscosity of 300 SUS, a pour point of -39°C, and is compatible with HCFC…

SKU 3G-OTH-72543

Brand
COMSTAR
Item
Synthetic Oil: Polyol Ester, 1 qt, 300 SUS, -39°C Pour Point
Category
Polyol Ester Synthetic Refrigeration Oils
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

COMSTAR
Manufacturer Part Number
45-020
Product Type
Synthetic Oil
Viscosity Grade
ISO-68
Compatible Refrigerant Group
HCFC
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

COMSTAR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The COMSTAR Synthetic Oil is a polyol ester synthetic refrigeration oil, ISO-68 viscosity grade, supplied in a 1-quart container. It has a viscosity of 300 SUS, a pour point of -39°C, and is compatible with HCFC refrigerant groups. This yellow oil is identified by manufacturer part number 45-020.

Frequently Asked Questions

What is COMSTAR Synthetic Oil used for?

COMSTAR Synthetic Oil is a polyol ester refrigeration oil used to lubricate compressors in HVAC and refrigeration systems. It is compatible with HCFC refrigerant groups and is formulated to provide thermal stability and wear protection in industrial cooling applications.

What are the specifications of COMSTAR Synthetic Oil 45-020?

COMSTAR Synthetic Oil 45-020 is an ISO-68 viscosity grade polyol ester oil with a viscosity of 300 SUS and a pour point of -39°C. It is supplied in a 1-quart container and is compatible with HCFC refrigerant groups. The oil is yellow in color.

Where to buy COMSTAR Synthetic Oil in worldwide?

3G Electric supplies COMSTAR Synthetic Oil worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this polyol ester refrigeration oil to your facility. Contact us for pricing and lead time on orders.

How to select the right viscosity for COMSTAR Synthetic Oil?

Selecting the correct viscosity, such as ISO-68 for COMSTAR Synthetic Oil, depends on the compressor manufacturer's recommendations and the operating temperature range. Always match the viscosity grade to the system's design to ensure proper lubrication and efficiency. Consult the OEM guidelines for your specific equipment.

Used in

Common applications for COMSTAR
Geothermal HVAC systems — COMSTAR Geothermal-E heat transfer fluid for closed-loop heat exchange
Refrigeration system maintenance — COMSTAR Moisture Trap liquid dehydrant for moisture removal in mineral oil systems
Diesel engine fuel treatment — COMSTAR Super Heat fuel additive for combustion improvement and deposit reduction
Fuel oil boiler sludge control — COMSTAR Sludge Solve additive for sludge dispersion in heating oil systems
Oil system water detection — COMSTAR water detecting paste for quick contamination checks in fuel or lubricant tanks
Biofuel storage and handling — COMSTAR BioFuel Treat 7 in 1 for phase separation and corrosion prevention in ethanol blends

COMSTAR Products

3G Electric supplies COMSTAR polyol ester synthetic refrigeration oils. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from COMSTAR

View all COMSTAR parts
COMSTAR Synthetic Oil: Polyol Ester, 55 gal, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-009). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HCFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR
COMSTAR Synthetic Oil: Polyol Ester, 55 gal, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-009). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HCFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR Synthetic Oil: Polyol Ester, 5 gal, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-008). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR
COMSTAR Synthetic Oil: Polyol Ester, 5 gal, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-008). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR Synthetic Oil: Polyol Ester, 1 qt, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-019). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR
COMSTAR Synthetic Oil: Polyol Ester, 1 qt, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-019). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR Synthetic Oil: Polyol Ester, 1 gal, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-007). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR
COMSTAR Synthetic Oil: Polyol Ester, 1 gal, 150 SUS, -52°F Pour Point, Yellow, A2L Compatible (MPN 45-007). Key specifications — Viscosity Grade: ISO-32; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Compatible Refrigerant Type: R-32; Product Type: Synthetic Oil.
COMSTAR Synthetic Oil: Polyol Ester, 5 gal, 300 SUS, -39°C Pour Point, Yellow (MPN 45-011). Key specifications — Viscosity Grade: ISO-68; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Product Type: Synthetic Oil.
COMSTAR
COMSTAR Synthetic Oil: Polyol Ester, 5 gal, 300 SUS, -39°C Pour Point, Yellow (MPN 45-011). Key specifications — Viscosity Grade: ISO-68; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Product Type: Synthetic Oil.
COMSTAR Synthetic Oil: Polyol Ester, 1 gal, 300 SUS, -39°C Pour Point, Yellow (MPN 45-010). Key specifications — Viscosity Grade: ISO-68; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Product Type: Synthetic Oil.
COMSTAR
COMSTAR Synthetic Oil: Polyol Ester, 1 gal, 300 SUS, -39°C Pour Point, Yellow (MPN 45-010). Key specifications — Viscosity Grade: ISO-68; Brand: COMSTAR; Compatible Refrigerant Group: HFC; Product Type: Synthetic Oil.