... It is a brownred transparent liquid with the following characteristics:1. The system contains no Nitrogen, Sulphur, or Phosphorous ... improves work efficiency.SPECIFICATION Phenolic resinItemStandardAppearanceBrown red liquidViscosity, 25°C≤ 150 MPa.SFree Formaldehyde≤ 0.3%Density, g ... ductile casting and non-ferrous castinga. Mixing ProportionSand 100Resin 1.52.0% of sand weightHardener 20%--30% of ...