What Powder Coating does after CNC machining
Powder Coating is a CNC finishing step on AIHFABS. It runs after milling or turning so the blank leaves closer to a usable part — not only a machine finish. Use this page to decide whether Powder Coating matches color, wear, or assembly needs before you upload a file.
Powder coating hangs a charged dry film on a machined metal part, then cures it. Thicker and tougher than wet paint, it hides light cutter marks and comes in color and texture. Steel and aluminum CNC blanks are the usual stock.
Finishing is quoted with the machine work. Select Powder Coating in checkout, review price and lead time, and keep machining plus post-processing on one order instead of sending a raw blank to a second shop.
Why teams specify Powder Coating on CNC parts
Appearance
Powder Coating can hide cutter marks, even out color, or leave a uniform skin on housings, brackets, and review samples.
Performance
Depending on the process, Powder Coating may improve wear, corrosion resistance, or grip so the machined part survives handling and end use.
Ready-to-assemble blanks
When Powder Coating sits on the same traveler as milling or turning, the part arrives closer to install-ready — color, coat, or threads already on it.
How to order this CNC finish
Ordering Powder Coating uses the same upload as a standard CNC quote. You do not need a separate finishing RFQ for catalog options.
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Upload the CAD file
Use STEP, STP, or another supported format. The quoter reads the stock so finishing can be priced against the actual blank.
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Choose CNC process, material, and Powder Coating
Pick milling, turning, or another CNC route, then add Powder Coating and any other finishing the part needs.
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Compare price, lead time, and checkout
Review options, confirm quantity, and place the order. Machining and finishing stay on one timeline and one invoice.
Compatible stock and design notes
Powder Coating is typically applied to metals — and some plastics — after CNC machining. Compatibility depends on alloy, wall thickness, and whether the surface can be reached by bath, media, or a tap. Deep pockets, thin walls, and datum faces may need a review. If the automatic quote cannot apply Powder Coating, request a manual quotation.
Need Powder Coating on a batch, a mixed set, or a part that also needs tapping or paint? Keep those options in the same quote so lead time includes the full stack.
