A Complete Guide to the Powder Coating Process
Powder coating is an advanced and popular method to provide protection or a decorative coating to metal objects. Powder coating, also known as dry coating, is a finishing process in which dry, free-flowing thermoplastic or thermoset powder is applied to a metal surface. Unlike paint, it does not drip or run during application and powder coating creates a hard finish that is much tougher than conventional paint. The powder coating process is a multi-step progression that starts with preparing the surface and ends with curing in a 400 degree dry off oven. Ameriblasts boasts 25+ years of combined experience and has perfected our powder coating process. We use the highest quality and most advanced tools, machinery and powder to deliver a superior end product.
Preparing Metal Surfaces for Powder Coating
Preparation is the first and most important step of the entire powder coating process. This first step will determine how well the coating adheres to the metal surface and, as such, your overall satisfaction with the project. There are many different and effective options to clean and prepare the surface of your item. The most common method to properly prep the metal material prior to powder coating is using a degreaser and/or phosphate rinse followed by a water rinse. Other specialized preparation tactics can be used depending on the specific product. We will go over this information with you prior to any work being done.
Powder Coating Application Process
- Preparation & Cleaning: As mentioned above, the first stage is to put the item through our cleaning station. Specialized solutions and machinery is used to strip away oils, dirt, grease and other contaminants that could negatively affect adhesion of the powder coat finish.
- Painting Booth: Once the parts are properly cleaned, they’re transported to the painting booth. The booth holds two skilled paints who work side by side to powder coat the grounded parts.
- Dry Off Oven: After the finish has been applied, the parts are ready to be cured. While the product cures in the dry off oven the finish hardens and sets into a durable and visually appealing protective coating.
Preparation & Cleaning
Painting Booth
Dry Off Oven
Methods of Spraying Powder Coating
At Ameriblasts we utilize two main methods for powder coating application: electrostatic deposition (ESD) and fluidized bed powder coating). Either one of these applications will produce an even, hard finish that is more durable, long lasting and polished than traditional liquid paint.
Electrostatic Spray: This method requires a powder spray booth, powder feeder, electrostatic spray gun and a power unit. Powder material is distributed from the feeder into the powder coat gun. The gun electrically charges the powder allowing it to adhere to the electrically grounded surface of the metal item.
Fluidized Bed Application: Unlike the ESD method, in fluidized bed powder coating preheated parts are dipped into the powder material.
High Gloss, Protective Coating Finishes
While powder coating is mostly used to coat and protect metals, it can be used on a variety of other materials including plastics, glass and medium density fiberboard (MDF). Powder coating is a great choice if you’re looking to restore an item and aesthetics are of high importance. Ameriblasts provides coatings in a wide range of colors, specialty effects, finishes and texture that cannot be achieved through conventional liquid paint. Further, we’ve built relationships with the best powder manufacturers in the region. We offer powder in almost any color, gloss, texture or client specification.
When it comes to metal fabrication and restoration, powder coating finishes are the industry standard to achieve a beautiful, high gloss finish that will withstand weather elements and wear and tear for many years. For more information, to discuss your powder coating project or to see past work we’ve done, call 215-946-3762, send us an email or contact us through our website form.
