Symptoms Open surfaces polish well, but relief remains dull.Recesses look filled or grey after brush work.
Likely causes Brush contact is weaker than wheel contact.Compound amount is too high for the detail.The compound does not stay active in the cool contact zone.
Checks Check whether the dullness is residue or unpolished metal.Inspect under light after cleaning.Check whether LUXI Purple improves compound transfer.
Recommended fixes Clean the detail before judging the result.Use LUXI Purple with minimal compound and short passes.If the area is delicate, keep LUXI Green as the controlled low-temperature alternative and confirm final parameters during process testing.
Prevention Do not assume that a brush route behaves like a normal wheel route.Separate access, compound retention and final shine checks.
Recommended workflows Brush polishing for relief and recessesPolishing rose-gold electroplated coatingTitanium low-temperature polishingPorous castings from 3D prototypes — surface polishing with LUXILow-temperature controlled polishing with LUXI GreenLUXI Purple for brushes, cord, thread, relief and recesses
Understand the cause Brush, Thread and Small Tool LogicWhy planar items require a more active first polishing stage