// FINISHING SERVICES
Metal Finishing Services
Anodizing to barrel plating — every finish your parts need, coordinated with your machining order.
Rigid Concepts coordinates finishing directly with our trusted partner NorTex Metal Finishing in the DFW area. Submit one order, receive finished parts — no separate vendor relationship to manage. From MIL-spec anodizing to high-volume barrel zinc plating, we match the right process to your material, application, and print callout.
Match the finish to the print
One row per process — base metal, governing spec, and the job it does.
| Finish | Base metal | Governing spec | Choose it for |
|---|---|---|---|
| Anodize Type II / III | Aluminum | MIL-A-8625 | Corrosion resistance, added hardness, clear or black color |
| Chem film (Alodine) | Aluminum | MIL-DTL-5541 | Corrosion protection that keeps electrical conductivity |
| Zinc plating | Steel, iron | ASTM B633 | Cost-effective corrosion protection on hardware |
| Black oxide | Mild and stainless steel | — | Matte black with no dimensional change |
| Passivation | Stainless steel | ASTM A967 · AMS 2700 | Free-iron removal; restored corrosion resistance |
| Electroless nickel | Aluminum, steel, copper, brass | — | Uniform thickness on complex geometry |
| Tin plating | Aluminum, steel, brass, bronze, copper | — | Solderable, conductive electrical surfaces |
| Barrel plating | Steel and stainless small hardware | ASTM B633 (zinc) | Fasteners and small parts at volume |
Anodizing Services
Type II & III anodizing for aluminum. MIL-A-8625.
ExploreChemical Conversion Coating
Alodine/chromate conversion coating. MIL-DTL-5541.
ExploreZinc Plating Services
Rack & barrel zinc plating for steel. ASTM B633.
ExploreBlack Oxide Coating
Black oxide for ferrous parts — no dimensional change.
ExplorePassivation Services
Nitric & citric passivation for stainless. ASTM A967.
ExploreElectroless Nickel Plating
Uniform nickel coating regardless of geometry.
ExploreTin Plating Services
Matte & bright tin for solderable, conductive finishes.
ExploreBarrel Plating Services
High-volume zinc plating for fasteners & small parts.
ExploreGot a tough part? Send it over.
Upload your drawing or STEP file and we'll come back with pricing and lead time — from a single high-mix part to full production runs, held to exacting tolerances.