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What is the difference between painting and powder coating? 99% of paint people don't know

Views: 183     Author: Near     Publish Time: 2019-01-09      Origin: Site


Painting and powder coating are two completely different coating methods. Painting is the use of compressed air to disperse liquid paint (commonly known as paint dispersed into paint mist particles adhering to the surface of the object to be coated, while dusting is done by means of compressed air arch powder The particles dispersed into the mist under the action of high-voltage static electricity are adsorbed on the surface of the object by an electric field.

The correct name for dusting is electrostatic powder coating, which is not simple to use with a spray gun. The composition of the electrostatic powder spraying equipment is composed of a powder bucket (pulverized with compressed air), a high-voltage electrostatic generator, and an electrostatic powder gun. The types mainly include outdoor powders, and outdoor powders. The indoor powders are mainly epoxy type outdoor powders mainly of polyester resin type; and the paint is basically two kinds of ingredients.

cost analysis:

Paint according to: polyurethane paint to analyze calculation: paint solid content 40%, paint cost: 50 yuan, spray with air spray paint: 6 square, about = 8 yuan / square, primer about 7 yuan / square; at least two The total cost of sub-spraying is about 15 yuan/square.

The powder was analyzed according to: epoxy powder: spray thickness of about 60 um, solvent free 100% solids. (Can do 0 discharge, powder can be recycled) Powder coating cost 20 yuan / kg, 1kg powder can be sprayed 8 square, total cost: about 2.5 yuan / square, powder needs to be cured, heat is needed, heating cost: 1 yuan / Square, but the large workpiece is the machine chassis, and the outer casing, electric box and other products, and the thickness is thicker, the heating cost is about 3 yuan / square total dusting cost: 5.5 yuan / square.

Other cost analysis:

Spray paint requires water curtain cabinet or dry spray booth, because 30-40% of the paint is wasted, this paint also needs to be treated, the processing cost is about 0.5 yuan / square, the utilization rate of the powder is basically 100%, the recycled gas indoor Emissions, no need to deal with the cost; paint contains formaldehyde, toluene, xylene and other harmful substances, the body damage to workers, and secondary spraying, adding a lot of manpower, material resources; powdered workpiece: thick coating, can Covering some, the paint can not make traces; and after the powder is cured, the coating is hard, it is not easy to touch, and the machine equipment is more high-grade.

Hebei Hanna Technology Co.,Ltd is China’s largest powder coating equipment manufacturer,since 1990 .

From the production of the simplest manual powder coating machine to the full automatic powder coating line.

Want to know more about powder coating equipment, please contact us.

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