What is Pin-Hole and How to Prevent It in Powder Coating? When we apply powder coating, we want a perfect finish: smooth, resistant, and uniform. However, sometimes small defects appear that ruin the final result. One of the most common defects is pin-hole. ... Calidad de acabado Defectos de pintura Pin-hole Pintura Electrostatica Porosidad de pintura Pretratamiento de metal Oct 19, 2025 Recubrimientos