Scrub Brush vs Pad Driver on Floor Machines: Which to Use
Comparison · 6 min read · updated 2026-10-24
Disc-type floor machines — rotary floor machines and disc auto scrubbers — can run either a scrub brush or a pad driver. The scrub brush does the cleaning with its own bristles. The pad driver is a holder: a plate with a short, stiff bristle face (or gripper face) that grips a non-woven floor pad, and the pad does the work.
Both mount on the same clutch plate, so facilities often keep both. The question is which to fit for a given floor and task, and what each costs to run.
What each one does
| Factor | Scrub brush | Pad driver + pad |
|---|---|---|
| What touches the floor | Bristle tips (PP, nylon, abrasive or wire) | Non-woven pad in a chosen grade |
| Best surfaces | Grout, textured tile, rough or uneven concrete | Smooth, flat floors |
| Typical tasks | Scrubbing, deep cleaning, heavy soil | Cleaning, buffing, polishing, stripping, burnishing |
| Change of aggressiveness | Swap the brush | Swap the pad color/grade |
| Obstacles and edges | Bristles flex over them | Pads can tear or snag |
| Consumable | The whole brush, long interval | Pads, short interval; driver lasts |
Choose a scrub brush when…
- The floor has grout lines, anti-slip texture or pitted concrete — bristle tips reach into recesses a flat pad bridges over.
- There are expansion joints, drains or edges that would chew up a pad. The nylon filament maker points out that a brush glides over obstacles that can badly damage a pad.
- The floor is unfinished concrete or stone and you want a long-life consumable.
- Heavy soil needs abrasive filament; see our abrasive filament disc brush (46 or 60 grit).
Choose a pad driver when…
Our short-trim pad driver for 12–21 in plates uses a PP bristle face; the 13 in Advance-pattern driver uses PBT.
- The floor is smooth and finished (vinyl tile with floor finish, sealed concrete, terrazzo) and you want to clean without scratching or dulling.
- One machine must do several jobs. A single driver plus a stack of pads covers stripping, scrubbing, cleaning, buffing and polishing.
- You are burnishing at high speed — burnishers run pads, not brushes.
- You want the lowest up-front cost per task; a driver is bought once and pads are cheap individually.
Pad grades and speeds
Pads follow a broad color code from aggressive to gentle: black or brown for stripping, green and blue for scrubbing, red for buffing and light cleaning, white for polishing. A leading pad maker's selection chart lists stripping, scrubbing, cleaning and buffing pads for low-speed machines of 175–600 rpm, and burnishing pads for ultra-high-speed machines running at 1,500 rpm and above.
Exact colors vary between pad makers, so match by the task on the pad label rather than by color alone. And never mount a scrub brush on a high-speed burnisher.
Running cost: brushes vs pads
Pads are inexpensive individually but wear out quickly and need washing or replacing often. A brush costs more up front but lasts much longer. The filament maker's own floor-care literature claims abrasive brushes can last for months on stripping and aggressive scrubbing, where pads and pastes are often replaced daily — a manufacturer claim, but the direction matches field experience.
On the other hand, a floor-equipment supplier notes that grit brushes are less effective than a black stripping pad at removing floor finish. So the cheapest option depends on the job: brushes win on rough, abrasive floors and long scrubbing hours; pads win on finish care and stripping smooth floors.
Fitting a pad driver correctly
The driver plate should match the diameter of the pads you run, and its fitting must match the machine's drive: clutch plate, bayonet or bolt-on hub. Some machines also need a riser or spacer to set the pad at the correct height, so check whether your original driver came with one before ordering by part number.
The gripping face matters too. Short-trim bristle faces in PP or PBT hold the pad without letting it slip while keeping it flat; a centre locator helps position the pad concentrically so the machine runs without wobble. If pads keep flying off or wearing unevenly, the grip face is often worn and the driver, not the machine, needs replacing.
Decision checklist
- Floor texture: grout, texture or rough concrete → brush. Smooth and finished → pad driver.
- Task: daily scrub → either; strip, buff, polish or burnish → pad.
- Obstacles: joints, drains, raised edges → brush.
- Machine: confirm clutch plate type, plate diameter and pad size; some machines need a riser.
- Fill for brushes: PP, nylon or abrasive — see nylon vs polypropylene.
- Send machine model and part numbers via Request a Quote, or browse floor scrubber brushes.
Frequently asked questions
- What is a pad driver?
- A pad driver (pad holder) is a plate with a short-trim bristle or gripper face that fits a floor machine's clutch and holds a floor pad. The pad does the cleaning; the driver transmits the machine's rotation and pressure.
- Should I use a brush or a pad on tile with grout?
- A brush. Pads ride over grout lines and textured tile, while bristle tips reach into them.
- Can I use a scrub brush on a high-speed burnisher?
- No. Burnishers run at very high speeds with burnishing pads; scrub brushes are for low-speed rotary machines and scrubbers.
- Is a pad driver the same size as the pad?
- The driver plate is sized to the pad diameter your machine uses. Match the driver to the pad size and the machine's clutch fitting.
Related products
Need help choosing or a custom spec?
Send us your machine, drawing or requirement — we'll match the right brush and quote, usually within one business day.