Three compounds, full spectrum

Three compounds, full spectrum

FEYNLAB® A-Series is a three-step polishing system built on ceramic aluminum oxide with linear cut (see DAT vs. SMAT). It covers the full defect range — from industrial oxidation to final “jeweling” before ceramic coating.

The goal is not “more bottles” but reaching the target with the lowest aggression possible. A test spot on an inconspicuous panel decides which compound to start with.

FEYNLAB A50 — Super Heavy Cutting Compound

Highest concentration of the coarsest ceramic aluminum oxide particles in the portfolio. Primary role: uncompromising rapid abrasion for heavy oxidation, acid etching, deep RIDs, and sanding marks.

• Cutting power: Removes P1000 sanding trails with relative ease.
• Use: Extremely hard clear coats, oxidized marine gelcoat, industrial finishes.
• Finish character: Despite brutal cut, leaves a surprisingly clean surface — microscopic grain sharpness shears rather than tears the film.

Recommended pairings

A50 is a professional tool. In DIY hands it makes sense only on very hard paint with a proven test spot and follow-up with medium compound. Most daily drivers never need A50.

FEYNLAB A500 — Medium Polishing Compound

The center of the system. Mid-calibrated abrasives deliver enough aggression for medium-depth scratches and holograms with excellent finishing behavior.

“One-step” sweet spot

A500 + medium foam (e.g. CCS HDO Polishing) on a DA is the most usable combo for a typical daily driver. One step removes 80–90% of defects and leaves very high gloss without mandatory further correction.

Pairing behavior

• With a firm pad it behaves like a coarse compound (strong cut).
• With a soft pad it behaves like a fine finishing compound (light cut, heavy gloss).

That variability makes A500 the first compound to own for personal machine polishing. It covers more situations than A50 and A1000 combined.

FEYNLAB A1000 — Fine Finishing Polish

The final step professionals call “jeweling.” Ultra-fine calibrated particles do not remove deep RIDs — they level micro-marring left by earlier steps and maximize optical depth.

• Extended workability — lubricants do not dry out in long cycles.
• Soft finishing foam + minimal pressure — energy comes from speed, not hand force.
• Low dusting — critical in studio environments.

When to use A1000

• Third step after A50 / A500 for show-car finish.
• Standalone step on new vehicles before premium FEYNLAB coating.
• Refinement after PPF installation or light cosmetic correction.

Practical pairing matrix

What A-Series cannot do

• Scratches below clear-coat level — no compound restores pigment. Correction ends; body shop begins.
• Orange peel texture — requires wet sanding; certified studio only.
• Dried fillers from previous poor compounds — A-Series has no fillers and will not replace them. If old protection masked defects, they appear after A-Series. That is a feature, not a flaw.

Consumption and pad life

Linear cut means 3–4 dime-sized drops per 60 × 60 cm section. Lubrication is sized so compound does not dry before the cycle ends.

After wipe-down, brush or air-clean the pad so cut stays linear in the next section.

Key takeaways

• A50 = heaviest correction, studio or very hard paint with proven test spot.
• A500 is the universal DIY one-step candidate.
• A1000 separates “polished” from “finished” — always before ceramic.
• Zero fillers + body shop safe = truthful finish the ceramic film can actually hold.

Further reading

• Pads: foam, microfiber, wool
• Rotary vs. DA polishers
• Panel Prep vs. IPA before ceramic application