... color, low viscosity, and small in the amount of free phenol. ParametersItemsTesting outcomeAppearanceLight yellow liquid, transparentContent%99.5chroma2-3Density ... cardanol which is widely used to take place of phenol to produce epoxy hardener, liquid phenolic resin, liquid ... 1. Epoxy resin hardener, epoxy resin ameliorant; 2. Liquid phenol: epoxy resin adhesive, epoxy resin anti-corrosion coating; 3 ...