Aluminum Surface Treatments & Finishing Services
Where form and function are equals
When your aluminum part needs to be protected, colored, or finished to spec, think Alfiniti. We finish the same tube, pipe, bar, and extrusions we manufacture, through a chosen network of anodizers and coaters, so one partner takes your part from raw aluminum to a finished, ready-to-use component in the finish and color you specify.
Questions about Surface Treatments?
A Full Range of Aluminum Surface Treatments
We finish the tube, pipe, and extrusions we supply through a chosen network of anodizers and coaters. You deal with us, not with them. We schedule the work, we move the parts, and the finished part comes back on your order, so there is no freight to the finisher for you to arrange. Open any treatment below to see the detail.
Anodizing
Anodizing to your spec, on parts up to 27 feet long.
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Finishes
- Standard etch (201R1)
- Bright dip (205R5), a mirror-like shine few US shops offer
- Two-step black
- Hard coat
- Frostkote acid etch
Specs we work to
- Your own spec, customer-specific or proprietary. Send us a copy to review
- MIL-A-8625 Type I, II, and III, Class 1 (non-dyed) or Class 2 (dyed), and other anodizing specifications on request
Color
- Clear, or dyed to color
- Matched to your color standard, sample, or paint code
Size and formed parts
- Parts up to 27 feet long
- A bendable anodized process for parts that are bent after finishing
The anodic layer becomes part of the metal, so it will not chip or peel.
Have questions about anodizing?
Wet Painting & Powder Coating
Powder coating and wet paint, including CARC for defense work.
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- Exact color matching capabilities
- Gloss to your spec
- Prototype through production
Have questions about painting and powder coating?
Printing
Continuous marking down the full length of the tube, applied as part of the finishing run.
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- Inkjet printing
- Continuous steel stenciling, repeating the mark end to end on long lengths
- Printed on bare, anodized, powder coated, or painted surfaces
- Printed in the color you specify
- Character size and mark length to your drawing
- To your artwork and placement
- Marks hold through handling and service
Have questions about printing and marking?
Grinding
Weld and weldment grinding, on the assemblies we weld.
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- Weld spatter and tool marks removed
- Surface defects ground out
- Even, uniform texture
- As a final finish or as prep for paint, powder, or anodize
Have questions about grinding?
Polishing
Satin through near-mirror finishes on round tube and other profiles.
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Processes
- Polishing
- Buffing
- Brushing
- Centerless grinding
- Graded emery from roughly 120 through 220 grit
- Round tube where the profile allows
- Polished before a bright anodize or bright dip, so the shine is locked under the anodic layer
Have questions about polishing?
Sandblasting
Uniform matte texture, from very fine through coarse.
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- Bead and abrasive blasting
- Graded media to the texture you specify
- Even, non-directional finish that hides handling
- Strips light oxidation and surface marks
- As a final finish or as the key for paint, powder, or anodize
Have questions about sandblasting?
Best Aluminum Alloys for Finishing
How well aluminum anodizes, polishes, or takes paint depends on the alloy and temper. These are the alloys most manufacturers reach for when finish matters, all of which we manufacture, and we will help you confirm the right choice for your part.
6063
The anodizing and architectural favorite. Its smooth extrusion surface takes a bright, uniform clear or colored anodize, the default for trim, framing, and decorative profiles.
6463
The bright-dip specialist. A decorative variant of 6063 developed for bright, mirror-like trim, the alloy to reach for when you want a bright-dip anodized finish.
6061
The structural all-rounder. Anodizes and paints cleanly while carrying load, so parts can be finished well without giving up strength.
1100
The clear-anodize choice. Commercially pure aluminum that anodizes to a clear, bright finish with excellent corrosion resistance when appearance is the priority.
Frequently Asked Questions
Can Alfiniti finish the same aluminum it manufactures?
Yes. Alfiniti is an aluminum manufacturer first, and we finish what we supply through our chosen network of anodizers and coaters. You get material and finishing on one order, with one team accountable from raw stock to finished part, and no freight to the finisher to arrange yourself.
What anodizing finishes and specs do you offer?
Standard etch (201R1), bright dip (205R5), two-step black, hard coat, and Frostkote acid etch, in clear or color, to MIL-A-8625 Type I, II, and III, Class 1 or 2, on parts up to 27 feet long. We also run a special bendable anodized process for parts formed after finishing, and we can work to custom or customer-specific anodizing specifications. Send us a copy of the spec to review.
What is bright dip, and why does it matter?
Bright dip is a chemical brightening step before anodizing that gives aluminum a bright, mirror-like surface, then locks it in under the anodic layer. Few US shops offer it, especially at length. We offer it through our anodizing network, on parts up to 27 feet.
Can you match a specific color?
Yes. We color match to a standard, sample, or paint code, in wet paint, in powder coating, in dyed anodizing, and in CARC coatings for defense work. Send your color requirement and we will match it.
What do you need to quote a finish?
The part or a drawing, your alloy and temper if known, the finish and any coating spec (for example MIL-A-8625 Type II Class 2), color or gloss requirements, the end use of the part, and estimated volumes are enough for us to get started. If you are not sure which finish fits, we will help you choose.
Specifications & Documents
Coating specifications, compliance statements, and the alloy data behind a good finish.
