PEG20000 Appearance: ( 25c) : white solid powder Freezing point( c) : 60-64 Clarity and color of solution: Non-concentraded, not deeper than 2 # standard solution Average molecular weight: 18000-21000 Viscosity: Â Â 26-50 PHÂ Â value: 5-7 Function: This series products have excellent water solubility, compatibility, lubrication, adhesion and thermal stability.So they could be used as As a lubricant, dispersant, bonding agent, Fu-type agent.