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Powder Coating Surface preparation – CLEANING ALUMINUM
Alkaline Cleaners Alkaline cleaners for aluminum differ from those used for steel; they usually have a blend of mild alkaline salts to avoid attacking the aluminum surface. In some cases, a small to moderate amount of free caustic soda may be present in the cleaner to remove difficult soils, or to provide a desired etch. In the power spray method of application, the parts to be cleaned are suspended in a tunnel while the cleaning solution is pumped from aRead More …
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
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
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 …
Cleaning functions most importantly in maximizing powder coating results
The highest quality powder coating will provide excellent results only if the pretreatment (cleaning, phosphatizing, conversion coating) is done correctly and the overall pretreatment system is maintained up to its potential. Powder coating brings pretreatment back to the basics of cleaning, rinsing, phosphatizing,and seal rinsing. To maximize the benefit derived from powder, the pretreatment system must provide a clean conversion coated product in a dry state to the powder booth. Surface preparation encompasses more than conditioning or improving a substrateRead More …
Economic advantages of powder coatings
Energy and labor cost reduction, high operating efficiencies, and environmental safety are advantages of powder coating that attract more and more finishers. Great cost savings can be found in each of these areas. When compared with a liquid coating system, a powder coating system has several obvious significant economic advantages. There are also many advantages that may not appear significant by themselves but, when collectively considered, contribute substantial cost savings. Although this chapter will try to cover all cost advantagesRead More …
Advantages of Epoxy Polyester Hybrids
Epoxy powder coatings based on newer technology are known as epoxy-polyester “hybrids” or “multipolymer” systems. This group of powder coatings could be considered simply part of the epoxy family, except that the high percentage of polyester utilized (often more than half the resin) makes that classification misleading. The properties of these hybrid coatings are more closely akin to epoxies than polyesters, with a few notable exceptions. They show similar flexibility in terms of impact and bend resistance, but produce slightlyRead More …
Attending 124th CANTON FAIR from Oct 15-20
Dear Sir/Madam, JINHU COLOR POWDER COATING CO.LTD will be at present in 124th CANTON FAIR from Oct 15-20 . it would be a great pleasure to meet you at the exhibtion. Exhibition Hall: C Booth Number: 14.4A18 Date: Oct 15-20 Invitation Application
A summary of the key properties of each generic type of thermosetting powder coating
Industrial finishes are custom formulated to individual and end-user requirements. Successful selection depends on a close working relationship between users and suppliers. Selection should be strictly on a demonstrated film performance basis. This is because the film performance of a thermosetting powder coating is completely dependent on the bake it receives in a particular plant, on a particular substrate, with a particular degree of cleanliness, and type of metal pretreatment. Many specialties in the marketplace can cross over the guidelines.Read More …
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