Why Should I Use Powder Coating?

This are 4 major reasons why you should Power Coat instead of liquid coating.

High Performance

Powder Coating is a high performance method of finishing products as it does not run, drip, sag, or exhibit “solvent pops.” Furthermore, powder coating offers excellent resistance to heat, abrasion, impact, UV from sunlight, and corrosion. Powder coating can be applied in thickness’ ranging from less than 1 mil to more than 20 mils, depending upon the requirements of the application and the type of coating being sprayed.

Environmentally Sound

Certainly the most sensitive issue associated with metal finishing today is environmental impact. There are no solvents used in either the cleaning phase or the spraying stage of the powder coating, thereby saving the environment from harmful toxic discharges normally associated with liquid coating. Furthermore, the powder overspray can be collected for re-use, thus providing up to a 98% usage efficiency.

Quick Turn-Around Time

Another advantage of powder coating over liquid coatings is turn-around time. With no need for post-curing, or “flash-off”, powder coat customers can have their parts back to within 24 hours if scheduling permits. Also, the prevailing weather condition does little to affect the outcome of powder coating.

Great Color Selection

There are literally thousands of colors available from a variety of manufacturers, and custom color matching is possible. Coatings are formulated with gloss levels ranging from high to flat, with textures ranging from smooth to rough. You’ll even find antique and hammertone finishes.

How Does Powder Coating Work?

Preparation
The first step to quality powder coating is surface preparation, otherwise known as pretreatment, of the metal parts to be coated. Several methods of this include solvent wiping, sandblasting or glass bead blasting, and chemical bath treatments. The most common chemical treatments are iron phosphating for steels parts, and chromate conversion for aluminum parts.Power Coating

Powder Application
The second step of the powder coating process is the actual application of the powder coatings onto the parts. Using electrostatic spray guns, the powders are gently blown through the air gun, picking up a static charge, and are attracted to the grounded parts as they move through the air. The static charge is strong enough to hold the particles on the part, but not enough to disrupt the spray.

Curing
The final step to the process is curing. When the coated parts enter the 400 degree oven, the powder granules melt and flow together, and after a short period are cured. The parts are then removed from the oven and allowed to cool, after which they are fully cured and ready for packaging. At this point the powder coating process is complete and the parts are ready for use.

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