Powder Coating Troubleshooting Guide

Chapter Two: Manufacturing of Powder Coatings

Weigh-up & Mixing
  Weighing and mixing powder coating materials - powder coating troubleshooting guide

Extrusion Process
  Extruding materials - powder coating troubleshooting guide

Milling & Sieving
  Milling and sieving materials - powder coating troubleshooting guide

Particle Size Distribution
  particle size distribution of powder coatings - powder coating troubleshooting guide

Effects of Particle Size


Fine Particles:
  • Lower film builds
  • Can blind cartridges and filters
  • Migrate from part into exhaust
  • Reduced fluidization properties
  • Reduced Farraday penetration
  • Smoother films
  • Absorb moisture more readily
Coarser Particles:
  • Higher film builds
  • Increased Farraday penetration
  • Increased fluidization properties
  Small powder coating particles and coarse powder coating particles have different effects on powder coatings - powder coating troubleshooting guide