MOLYKOTE® L-4640 Synthetic Compressor Flush Fluid

MOLYKOTE® compressor and vacuum pump fluids are formulated to meet or exceed the performance of all comparable OEM fill products. MOLYKOTE® offers solutions for a variety of applications and equipment including rotary and reciprocating equipment, screw, vise, centrifugal and piston compressors and vacuum pumps and blowers. DuPont supports oil analysis to ensure that the right product is used for each application and that product and equipment life and performance is maximized.

Get A Quote

Key Properties

A diester compressor flush fluid that ranges from 32 - 46 cSt and contains a rust, oxidation, and corrosion inhibited additive package.


Recommended flush fluid for transistions between different chemistries, also recommend for system refills.

Features & Benefits

Versatile flush fluid iintended to be used on rotary screw compressors that are unvarnished or have the presence of varnish and utilize mineral oils, polyalphaolefins, polyalkylene glycols, or diester oils.

Product Details

Product Type: Oil
Chemistry: Ester; Solvent
Base Oil Viscosity: 38.6 @ 40°C
ISO Grade: 32-46
Viscosity Index: 65
Color: Clear to Golden Yellow
Hazmat: No

We Can Help

ChemPoint has chemists and engineers with experience and market expertise to help you find the right solution. We are ready to work with you to understand your environment and help define your lubrication requirements.


Hi, let us know if you have any questions as you visit our website.

ChemPoint reps are here to assist you