Services Built for a Mirror Finish
From architectural stainless steel to aerospace alloys, Burnish 354 delivers precision polishing, buffing, and surface refinement down to the last micron — for fabricators, OEMs, and restoration teams that settle for nothing less than flawless.
Six core finishing services, one obsessive standard
Each service runs in a dedicated cell with calibrated media, monitored Ra values, and a documented hand-off trail. We don't round corners — we round edges, optically flat, to spec.
Mirror Polishing
Multi-stage progressive polishing that takes raw mill stock to a true #8 mirror — Ra < 0.05 µm. Ideal for architectural facades, food-grade tanks, and decorative stainless.
Directional & Satin Finishing
Consistent linear grain across panels, extrusions, and formed parts. Matched grit sequences produce uniform reflectance — critical when assemblies require visual continuity across welded seams.
Buffing & Color Buffing
Grease-bond and rouge-based buffing for non-ferrous and ferrous parts. Used to remove micro-scratch patterns left by prior grinding and to bring out the deep luster of brass, copper, and aluminum.
Vibratory & Tumble Finishing
High-energy mass finishing for deburring, edge radiusing, and pre-polish surface prep on batches of small to mid-sized parts. Ceramic and plastic media matched to material hardness and geometry.
Electropolishing
Electrochemical removal of surface material — deburrs, passivates, and brightens in one process. The standard for pharmaceutical, semiconductor, and sanitary stainless components where cleanability is non-negotiable.
Restoration & Re-Finishing
Salvaging tired, oxidized, or damaged metalwork back to spec — without replacing the original part. Common in heritage restoration, marine hardware, and rebuilding showroom-grade automotive trim.
From receiving dock to final inspection
A documented four-stage workflow that protects your timeline and your tolerances. Every job gets a traveler; every traveler gets signed off.
Material Verification
We confirm alloy, temper, and incoming surface condition against your spec. Photos, measurements, and Ra readings are logged before any media touches the part.
Grind & Pre-Polish
Sequenced abrasive steps — typically 80 → 120 → 220 → 400 — erase mill marks, weld discoloration, and fabrication scratches. The foundation for a flawless final finish.
Refine & Buff
Progressive compound stages bring the surface to your specified Ra and reflectivity. We run in-process checks at each transition so nothing compounds into a defect.
Final Inspection
Profilometer readings, gloss-meter verification, and side-by-side comparison against reference panels. Parts are wrapped in protective film and packed in custom crating for delivery.
What sets our finish line apart
Finishing shops aren't interchangeable. Here's what makes our bench different from the day a job walks in to the day it ships.
Calibrated for tolerance, not vibes
Our polishers work to a documented grit sequence and Ra target — not to whatever the previous shift left in the buffer. Every part sees the same process, repeatable run after run.
Materials fluency across 40+ alloys
Stainless, aluminum, brass, copper, titanium, Inconel, Monel — each behaves differently under media. We pick compounds, pressure, and dwell time based on metallurgy, not guesswork.
Built for OEM schedules
We run on production timelines, not project timelines. Kanban releases, blanket POs, and recurring batches are welcomed — our shop is structured to keep your line fed.
What our clients say after a finished run
Two voices from the manufacturing and fabrication world we work with every week.
We've sent three rolling batches of architectural stainless to Burnish 354 over the past year. Every shipment comes back with matched grain direction and identical Ra readings. That's the part most shops can't hold.
Our sanitary process tanks require electropolishing to a documented finish — no exceptions, no shortcuts. Burnish 354 understood the spec from the first RFQ and the certs match the parts, every time.
Have parts that need finishing?
Send us your drawings, sample parts, or a description of what you're trying to achieve. We'll come back with a process recommendation, lead time, and a quote — usually within one business day.