Brushes and Pad Drivers for Commercial Floor Cleaning
Industry guide · 6 min read · updated 2026-10-24
Commercial floor care runs on two kinds of tooling: brushes that scrub directly, and pad drivers that hold a non-woven floor pad. Walk-behind and ride-on scrubber-dryers, rotary floor machines and burnishers all take one or both, and the right choice depends on the floor surface, the soil and the job: daily cleaning, deep scrubbing, stripping or polishing.
This page covers when to use a brush and when to use a pad driver, how filament and grit are matched to each task, how speed fits in, and what distributors and facility managers should send when ordering replacements for their machines.
1. Brush or pad driver?
A scrub brush cleans with its own bristles, which reach into grout lines, textured tiles, anti-slip vinyl and uneven concrete. A pad driver is a disc with short, stiff bristles (or hooks) that grip a floor pad; the pad does the cleaning and the driver only holds and turns it. Pads give a flatter, more even finish on smooth floors; brushes cope better with texture and obstacles.
DuPont's brush-filament bulletin argues that abrasive floor brushes are the most cost-effective tool for stripping and aggressive scrubbing compared with pads and abrasive pastes, can last for months where pads may be replaced daily, and glide over obstacles that can tear a pad.
2. Matching filament and grit to the task
Floor brushes use plain filaments (polypropylene, nylon, natural fibre) for cleaning and abrasive nylon (grit bonded in the filament) for scrubbing and stripping. DuPont lists these typical abrasive filaments for floor care:
| Task | Filament diameter | Grit |
|---|---|---|
| Stripping | 1.5 mm | 46 |
| Stripping and aggressive scrubbing | 1.3 mm | 80 |
| Scrubbing | 1.1 / 1.0 / 0.9 mm | 60 / 120 / 180 |
| Cleaning and buffing | 0.5 / 0.4 mm | 320 / 500 |
3. Plain-filament brushes for daily cleaning
- Polypropylene: the general-purpose scrub brush for daily wet cleaning on vinyl, sealed concrete and tile. Our PP disc scrub brushes use 0.5 to 0.6 mm filament as standard.
- Nylon: tougher and better at recovering its shape, used for heavier daily scrubbing; very fine nylon is softer.
- Natural fibre (such as tampico): soft, used for polishing and delicate floors; DuPont notes tampico is sometimes mixed with fine abrasive nylon for a softer buffing brush.
- Abrasive grit: for deep scrubbing, grout, slip-resistant tiles and stripping; our abrasive filament scrubber disc brush comes in 46 and 60 grit.
4. Machine speed and pads
Floor machines fall into speed bands. 3M's pad selection chart lists stripping, scrubbing, cleaning and buffing at low speed, 175 to 600 RPM, on rotary machines or automatic scrubbers, and burnishing at ultra-high speed, 1500 RPM and above, on electric, battery or propane burnishers. Scrubber-dryer brushes and pad drivers sit in the low-speed band; burnisher pad drivers are a separate, high-speed item.
When ordering a pad driver, match the driver to the machine and pad size, and confirm it is designed for your machine's speed. Short-trim bristle drivers (for example PBT or polypropylene bristle) grip the pad without letting it slip off centre.
5. Fit: the part most often wrong
We supply replacements compatible with many machines, such as a disc scrub brush for Kärcher BD scrubber-dryers and a 45 in double-chevron cylindrical brush for Tennant S30. See the full floor scrubber brush category.
- Disc brushes and pad drivers mount by clutch plates, bayonet lugs or centre locks that differ by machine make and model.
- Diameter must match the machine's deck; a brush that is too large hits the shroud, one too small leaves stripes.
- Cylindrical scrubbers need correct length, diameter, core ends and drive hubs; bristle pattern (straight, chevron) affects how water and debris move.
- Pad drivers come in sizes matched to pads, for example our short-trim drivers covering 12 to 21 in.
6. Wear and replacement
- Replace scrub brushes when bristles have worn short enough that the machine's down-pressure setting can no longer give even contact, or when bristles splay permanently.
- Abrasive brushes cut aggressively at first and then settle; DuPont notes the break-in can take from minutes to hours.
- Check pad driver bristles for crushing; a driver that no longer grips lets pads slide and wear unevenly.
- Rinse brushes after use and store them off the floor so bristles do not take a permanent set.
7. What to send for a quote
Send it through Request a Quote.
- Machine make and model, and OEM part number if available.
- Brush or driver diameter (or cylinder length and diameter) and mounting type.
- Fill: PP, nylon, natural fibre, abrasive grit size, or short-trim pad driver.
- Floor types and tasks (daily cleaning, deep scrub, strip).
- Quantity per size and whether you need private-label packaging.
Frequently asked questions
- Should I use a brush or a pad on my floor scrubber?
- Use a brush on textured, grouted or uneven floors and for heavy soil; use a pad driver with pads on smooth, flat floors where you want an even finish. Many sites keep both.
- What grit floor brush is used for stripping?
- DuPont lists 46 grit on 1.5 mm filament for stripping, and 80 grit on 1.3 mm filament for stripping and aggressive scrubbing. Finer grits such as 120 to 180 are used for scrubbing.
- What RPM is a floor scrubbing brush used at?
- Stripping, scrubbing, cleaning and buffing are low-speed tasks, listed by 3M at 175 to 600 RPM. Burnishing is done at 1500 RPM and above with burnisher pad drivers.
- What is a short-trim pad driver?
- A pad driver whose bristles are cut very short so they grip the floor pad firmly and keep it centred, instead of letting it slip or flex.
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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.