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Chemola™ Desco 660

Hydrocarbon Service for McEvoy Type Valves

Chemola™ Desco 660 is a superior gate valve lubricant/sealant formulated with 100% synthetic oils and non-soap thickeners. It is very effective in gas service (except chlorine, bromine, fluorine, and oxygen) and highly resistant to washout. It has excellent metal adhesion, corrosion resistance, EP characteristics and is water resistant.

Recommended Uses

Chemola™ Desco 660 can be used in aliphatic hydrocarbons, alkalis, dilute acids, salt water, water, sour crude and sour gas.

Typical Characteristics

AppearanceDark green, smooth, tacky
Penetration (ASTM D217)355-385
Worked Penetration, 60x (ASTM D217)355-385
Base OilSynthetic ester
Base Oil Viscosity30,000 cSt at 40°C
Base Oil Pour Point510°F (-12 °C)
AdditivesAntioxidant package
Specific Gravity1.03
Density (lb/gal)11.1
Dropping Point (ASTM D566)>500°F (260°C)
Flash Point>550°F (288°C)
Temperature Range0°F to 400°F (-18°C to 204°C)
Resistance to Water (FTM 5415)Pass
Resistance to 50% Ethanol in Water (FTM 5415)Pass
Resistance to Synthetic Condensate (FTM 5415 mod)Pass
Resistance to Mineral Spirits (FTM 5415 mod)Pass
Resistance to 20% Hexane in Mineral Spirits (FTM 5415 mod)Pass
Resistance to Diesel Fuel (FTM 5415 mod)Pass
Resistance to Brine, 135°F (53°C) (ASTM D1748 mod) Pass

Packaging Information

Item NumberUnit SizeQuantity
0826010QB10 lb can
0826025WMS25 lb pail
0826040WMS40 lb pail
0826120KG120 lb keg
0826400DR400 lb drum