Dual-action machines are generally more forgiving, forced-rotation machines add correction, and rotary machines demand stronger heat and edge control.

Wash, decontaminate and inspect first. Use a small test area to select the least aggressive pad and compound.

Work clean overlapping passes, keep the pad flat and clean it frequently. Do not add water unless the product explicitly permits it.

Black paint does not inherently require an “anti-hologram” product; finishing quality depends on paint, machine and process.

Protect the refined finish where appropriate, but do not assume every new vehicle needs no protection or every job needs two correction stages.