From preparation to finish
The structure separates preparation defects from polishing decisions, then guides material grouping, diagnostic checks, repair decisions and soft final polishing.
Process tree
First structured foundation for guiding an item from abrasive preparation into the LUXI polishing process. This is a readable static overview now and a data foundation for a future interactive decision tree.
The structure separates preparation defects from polishing decisions, then guides material grouping, diagnostic checks, repair decisions and soft final polishing.
This is a static overview of the future interactive decision tree.
1 process block
025 process blocks
031 process block
047 process blocks
051 process block
061 process block
076 process blocks
088 process blocks
094 process blocks
101 process block
111 process block
128 process blocks
Has the item completed abrasive preparation?
Before LUXI polishing starts, high spots, sprue remnants and obvious protruding defects should already be reduced, and the surface should be close to the intended geometry. From this point LUXI decisions focus on compound selection, wheel selection, route control, inspection, final polishing and cleaning.
What type of defects are visible?
Before polishing, separate high spots above the nominal surface, surface scratches, deep defects, defects hidden by grinding scratches and defects too large to remove economically.
Are protruding defects still above the intended surface?
Polishing compounds should not be used as a substitute for restoring basic geometry. Remove high spots and excess welded or cast metal with appropriate abrasive preparation, then return to inspection.
Are deep defects larger than the range that can be visually closed or softened by polishing?
Deep defects may be casting porosity, shrinkage cavities, inclusions, cracks, opened grinding defects or damage from previous processing. The decision depends on size, depth, location, visibility and economic justification of repair.
Is the item valuable enough to repair large local defects?
For valuable items, large local defects may be laser welded. After welding, remove excess metal, restore flat or even geometry, and return the item to the normal process flow.
Is further polishing economically justified?
If large deep defects cannot be visually closed or repaired economically, reject the item before wasting more polishing time and send it to remelt or recycle where appropriate.
Do not use standard polishing to hide defects outside the realistic polishing range.
Should abrasive noise be suppressed before defect decisions?
Grinding scratches can hide pores, cavities, deep scratches, inclusions and local depressions. A short diagnostic polish with LUXI Super Fine White can suppress abrasive noise and reveal the true condition of the metal. This is an inspection step, not final polishing.
What tools and speed control are available in your workshop?
Before choosing a detailed LUXI route, identify which variables are truly available: compound range, wheel range, rpm knowledge and speed control.
Do you have the full LUXI Sample Assortment or full compound range?
A full compound range makes controlled process development possible. If only selected compounds are available, route adaptation is limited.
Without the full range, process development is limited because compound aggressiveness cannot be compared systematically.
What wheels are available?
Wheel choice changes cutting, heat, contact area and final finish. When wheel choice is limited, wheel type becomes a fixed variable.
What motor speed control is available?
Known rpm and speed control help separate compound behaviour from heat and surface-speed effects. If rpm is fixed, treat it as a workshop condition.
Full wheel range and speed control allow ideal route selection and controlled alternatives: ideal, alternative, low-speed, aggressive, delicate and test-matrix routes.
What do material groups mean?Full LUXI Sample Assortment is available, but wheel choice and rpm are limited. Treat wheels/rpm as fixed and tune with compound selection and working technique.
This setup is insufficient for meaningful LUXI process testing.
What material group does the item belong to?
The material group helps choose the starting LUXI logic. It is not a strict chemical classification, but a practical production guide based on how the material usually behaves during polishing, heating and surface formation.
First-group materials usually include gold, silver, copper alloys, brass and bronze. These materials often follow the standard LUXI logic: surface preparation, first-stage surface formation and final polishing.
Examples: gold, silver, copper, brass, bronze.
Second-group materials include stainless steel, platinum, titanium, some zinc or tin alloys, unusual hard gold alloys, silver-platinum alloys, experimental casting alloys, powder metallurgy and metal 3D printing. With these materials, temperature, pressure, tool selection and surface response require closer control.
Examples: stainless steel, platinum, titanium, unusual hard alloys, powder metallurgy, metal 3D printing.
If the alloy composition or behavior is unknown, start with a cautious test polish on a small area. The goal is to understand whether micro-defects close and how the material responds to the selected LUXI scheme.
Is this a first-group material prepared to about 600-800 grit?
For normal first-group jewellery alloys with average geometry and average contact area, the base route is 800 grit preparation, then LUXI Blue with a yellow stitched muslin buff, then LUXI Super Fine White with a white unstitched flannel buff. If exceptional brightness or coating, plating or PVD preparation is required, use LUXI Orange instead of Super Fine White. Filigree adapts softer; large flat/open surfaces use first-stage escalation.
What do material groups mean?How large is the surface area being polished at one time?
Contact area changes effective pressure and local shear. Large flat or open surfaces often need stronger first-stage action than small narrow surfaces.
Does the surface concentrate force into a narrow working area?
Small surfaces concentrate hand force and usually do not require escalation beyond the base route if material, preparation and geometry are otherwise suitable.
What do material groups mean?Is the contact area typical for ordinary jewellery polishing?
Average jewellery surfaces usually follow the base first-group materials route before final polishing.
What do material groups mean?Does the large contact area make the base first stage too weak?
Large surfaces spread the same force over more area, reducing pressure per unit area and local shear. Increase first-stage aggressiveness by replacement, not by automatically adding extra stages.
Is the item large enough to require controlled process development?
Very large flat surfaces or production items may require a firmer wheel, Sisal cut-down, different wheel diameter, controlled process development and inspection.
Can the contact area be estimated before polishing?
If the contact area cannot be estimated, treat large flat surfaces cautiously and test on a small area.
What wheel or tool diameter are you using?
Tool diameter changes surface speed at the same rpm. Use this check to decide whether the process behaves like standard 6 inch wheel polishing, a hotter production-wheel route, a 4 inch bench-wheel route, an 8 mm felt-tool route or a 20 mm cotton-wrap route on a tapered spindle.
Do you know the rpm of your motor or tool?
Rpm must be interpreted together with diameter. Known rpm makes surface-speed comparison useful; unknown rpm makes process development less reliable.
Most normal wheel-based LUXI polishing assumptions apply when the route uses a standard 6 inch / 152 mm wheel at about 2500-3000 rpm and the material and geometry match the route.
At the same rpm, an 8 inch wheel has higher surface speed than a 6 inch wheel. Expect more heat generation, more compound mobility and stronger action, with higher overheating risk if pressure and contact time are not controlled.
Do not simply transfer a 6 inch route to an 8 inch wheel without short tests.
At the same rpm, a 4 inch wheel has lower surface speed than a 6 inch wheel. Polishing may be cooler, and a standard compound may feel less active or drier.
Small tools, brushes and mandrel wheels can have low surface speed even at high rpm because the working diameter is small. This leads toward future low-temperature polishing logic.
Thread or cord polishing has very low effective surface speed and temperature. Compound adhesion to the carrier and low-temperature behaviour become critical.
If rpm or diameter is unknown, process development is less reliable. Identify or estimate rpm and tool diameter before serious testing whenever possible.
What is the item geometry?
Average surfaces, filigree, large flat areas and deep relief do not need the same first-stage aggressiveness. Choose the first-stage route by geometry before final polishing.
What do material groups mean?Is the surface average jewellery geometry without excessive porosity?
Use LUXI Blue with a yellow stitched buff to remove 800 grit scratches and form a bright smooth surface layer. Then use LUXI Super Fine White with a white unstitched flannel buff for high lustre. If exceptional brightness or coating, plating or PVD preparation is required, use LUXI Orange instead of Super Fine White.
What do material groups mean?Should metal removal be reduced to protect fine elements?
For filigree or delicate fine elements, use LUXI Blue with a white stitched buff to reduce metal removal and avoid blurring small details. Follow with a gentle final polish.
Is LUXI Blue aggressive enough for the flat surface?
For large flat/open surfaces, the larger contact area lowers effective pressure and local shear. Increase first-stage aggressiveness by replacing the first-stage compound/wheel route, not by automatically adding extra preliminary stages.
Is the surface bright and free from visible scratches after the first stage?
After first-stage polishing the surface should be bright and visible scratches should be removed. Fine defects may be closed or softened by surface metal movement. The surface can look like butter spread over bread: it covers underlying roughness but still needs smoothing to become optically refined.
What final polishing path is needed?
Final polishing should be soft, not aggressive. Preferred wheel: white unstitched flannel buff. Alternative: white unstitched muslin buff. If only stitched wheels are available, threads can be cut and stitching removed to create a softer unstitched wheel.
What wheel type is needed for this polishing stage?
In the LUXI system, the wheel is not a neutral carrier for compound. Select it by material group, defect state, geometry, polishing stage and final finish goal. Sisal belongs to aggressive cut-down; cotton wheels carry the controlled first-stage and final polishing routes.
What do material groups mean?Is a cut-down stage required for hard metal, deep scratches, orange peel or grinding marks up to about 400 grit?
Use Sisal buff + LUXI Black only when an aggressive cut-down stage is justified. Sisal can remove deep marks, orange peel, small dents, scale and oxide, but it is not a final polishing wheel. After the cut-down stage, inspect the surface and continue to a cotton-wheel polishing route.
Use yellow stitched muslin buff as the standard first-stage wheel for first-group materials. Use white stitched muslin buff as a softer or more controlled alternative when geometry makes aggressive contact risky.
What do material groups mean?Use white unstitched flannel buff as the preferred final-polishing wheel. White unstitched muslin buff can be used as an alternative when a soft final contact is needed.
What do material groups mean?Sisal and Calico will be part of the second-group controlled / low-temperature logic. For now, treat this as a placeholder for stainless steel, platinum, titanium, some zinc/tin alloys and unusual alloys.
What do material groups mean?Large flat or large objects may require firmer or narrower wheel contact. Razor edge logic will be developed later as a separate route concept; no razor-edge image asset is currently provided.
Dress a new cotton or sisal wheel with a coarse silicon carbide stone before applying compound. This opens the working surface, removes loose fibres and makes compound application more controlled.
Is the wheel clean, dry and lightly charged?
During LUXI polishing, the wheel should not carry a black greasy overload layer. Clean the wheel more often than adding compound.
LUXI recommendations are starting procedures. Results depend on material, geometry, surface condition, tools and operator skill. Diagnostic polish is an inspection step, not a guarantee of defect removal. These recommendations apply to LUXI compounds and workflows, not visually similar third-party compounds.