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UCON™ LB-400-X

ISO 460 polypropylene glycol fluid designed for high temperature applications.




Product Overview

Alcohol-started base stocks featuring oxypropylene groups (m=0) with one terminal hydroxyl group. This product is water insoluble and has a viscosity of 400 cSt @ 100 °F

Product Specifications

Color: Brown
Odor: Mild
Boiling point (760 mmHg): > 200 °C ( > 392 °F) Calculated.
Flash point: closed cup 217 °C ( 423 °F) ASTM D 93
Vapor Pressure: < 0.01 mmHg at 20 °C (68 °F) ASTM E1719
Relative Vapor Density (air = 1): >1 Calculated.
Viscosity @ 100°F, SUS ASTM D 445: 400
Viscosity Index, ASTM D 2270: 179
Lbs/gallon @ 20°C: 8.30
Specific Gravity@ 20/20°C: 0.997
Closed Cup Flash Point ASTM D 93, °C (°F): 217 (423)
Open Cup Flash Point ASTM D 92, °C (°F): 262 (505)
Water, wt%: 0.25
Primary Chemistry: Polypropylene glycol monobutyl ether

Features & Benefits

Higher flash points
Less volatility at elevated temperatures
Less tendency to form oxidative by-products, e.g. aldehydes, organic acids
Less tendency to become acidic during use


Used as a lubricating fluid for industrial applications that require enhanced stability toward oxidation at high temperatures.

Related Products

UCON™ Polyalkylene Glycol Formulated Fluids

UCON™ polyalkylene glycol formulated fluids include calendar lubricants, coatings fluids, hydraulic fluids, metal working fluids, solder assist fluids, defoamers, textile rubber fluids, and food grade lubricants.

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