Chemola™ Desco Polymel 422 lubricant grease – 40 lb pail

Eurosul Code: 093351

Part Number: 0422040BM

Chemola™ Desco Polymel 422 is a premium synthetic polymer-based lubricant designed specifically for acid and acid gas services. With its unique combination of solid lubricants—molybdenum disulfide and graphite—it provides excellent metal adhesion, corrosion resistance, and performance under extreme temperatures and pressures. Polymel 422 is effective across a broad chemical range, making it ideal for use in gate, plug, and ball valves exposed to harsh substances such as H₂S, hydrofluoric acid, sour crude oil, and condensates. It also functions as a protective coating against acidic and corrosive environments in pipelines and petrochemical facilities.

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Specifications

Features
Appearance: Black
NLGI: 2
Base oil: Synthetic
Thickener: Inorganic
Solids: MoS₂ + graphite
Specific gravity: 1.3
Resistance: Water, diesel, ethanol, solvents, synthetic condensates, H₂S

Applications
Gate, ball and plug valves in sour service
Acidic crude oil and sour gas lines
Pipelines, petrochemical plants and refineries
Protective coating for metallic surfaces exposed to acids

Benefits
Strong adhesion even under pressure
Washout resistance against aggressive fluids
Excellent chemical compatibility with hydrocarbons and acids
Extends service life of valves and components
Thermal stability up to 316°C

Technical Specifications
Penetration (ASTM D217): 280–310
Base oil viscosity: 2,800 cSt @ 80°C
Temperature range: -29°C to 316°C
Drop point: >260°C
Flash point: >149°C
Density: 11.0 lb/gal