April, 2019

now browsing by month


FEIHONG Powders Attend 125th Canton Fair April 15-19,2019

From April 15 – 19, JINHU COLOR POWDER COATING CO.LTD will attend 125th Canton Fair as usual. HALL: C BOOTH: 14.4C22 DATE: April 15-1 You are warmly welcome !!

Conversion Coating of Galvanized Steel

Conversion Coating of Galvanized Steel

Iron phosphates or cleaner-coater products produce little or non-detectable conversion coatings on zinc surfaces. Many multimetal finishing lines use modified iron phosphates which offer cleaning, and leave micro-chemical etch on zinc substrates to provide adhesion properties. Many municipalities and states now have limits on zinc PPMs, forcing metal finishers to provide treatment of any solutions in which zinc substrates are processed. The zinc phosphate conversion coating is, perhaps, the highest quality coating that can be produced on a galvanized surface. ToRead More …

Chemical surface preparation before powder coating

galvanized steel

Particular application is closely related to the nature of the surface being cleaned and the nature of the contamination. Most surfaces powder coated after cleaning are either galvanized steel, steel, or aluminum. Since not all chemical-type preparations are applicable to all these materials, the preparation process selected depends on the substrate material. For each material, the type of cleaning will be discussed and its unique features for that substrate will be explained. Specific application processes are quite similar for eachRead More …