Carton EP.04 | Cordless Glass Oil Film Removing Polisher | 3" | 12V

Carton EP.04 Oil Film Removing Polisher: A Mini Cordless Tool for the One Job Bigger Polishers Can't Do Properly

The EP.04 is not a paint polisher. It's a purpose-built tool for one specific job that most detailers handle wrong: removing oil film, water spotting, and rain etching from glass.

Glass contamination is a different chemistry problem to paint defects. Oil film comes from road grime, exhaust residue, and silicone fallout from poor cleaning products — it sits on top of the glass as a hydrophobic layer that wiper blades can't shift. Water spots and rain etching are mineral deposits that have bonded into the glass surface itself. Both need a controlled mechanical action with the right compound (typically cerium oxide) to remove without scratching. A 5" or 6" paint polisher is too big to control on a curved windscreen, and a microfibre cloth doesn't have the consistent pressure to break the oil film evenly.

Why a 3" Backing Plate Matters Here

The EP.04's 3-inch (75mm) backing plate is sized to match what glass actually demands. It fits between A-pillars, follows the curvature of side mirrors, gets into corners that bigger machines miss. The single-handed pistol grip lets you control pressure precisely — and crucially, the housing is designed so you don't push down on the tool. The weight of the EP.04 plus the spinning pad is exactly the contact force you want. Push harder and you'll heat the glass.

Korean engineering note: The warning sticker on the body literally says "Please don't use it by pressing." Trust the design — let the machine do the work.

What Comes In The Box

The polisher. Cordless 12V tool, matte black PC/ABS housing.

One yellow foam pad on a 3" backing plate.

Pad change wrench.

What Doesn't Come In The Box

Battery — sold separately. The EP.04 ships as a tool only. If you already own a Carton EP.02 Foam Sprayer or EP.03 Electric Sprayer, the same battery slots straight in — that's the whole point of buying into the system. Otherwise grab the Carton Replacement Battery Pack alongside this tool.

Cerium oxide compound. The EP.04 needs an oil film removal compound to do its job. Most Korean-system glass polishers pair with cerium oxide (CeO₂) compounds — same chemistry used in optical lens manufacturing.

Best Use Cases

Windscreens with oil film haze that wipers smear instead of clearing. Common on cars driven in city traffic or near bushland.

Side and rear glass with hard water spots after years of sprinkler overspray, hose-down drying, or living near the coast.

Headlight lens restoration with the right compound — the EP.04 is small enough to follow modern complex headlight curves.

Pre-coating prep on glass before applying a hydrophobic coating like Soft99 Ultra Glaco. Removing oil film is the single most-skipped step that makes glass coatings die early.

What This Is Not

The EP.04 will not correct paint. The 3" head, low-throw orbital action, and 12V power are all wrong for paint correction work. If you need paint correction, look at our Dynabrade or Rupes machines instead.

The EP.04 is a glass tool. Use it for what it's built for and it earns its place in the kit.