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Strip Brushes — Custom Manufactured to Any Length, Any Bristle
A strip brush — also called a brush seal, channel brush or metal-backed brush — is the
workhorse of industrial sealing, cleaning and edge protection. Manybrush manufactures
to your exact channel dimensions, bristle spec and length, from a 100 mm sensor seal to
a 5 m conveyor skirt.
- Free samples in 3 days
- MOQ from 50 pcs
- 300+ existing channel profiles
- Food-grade available
Send a cross-section drawing or a photo of the old brush — we will confirm the profile within 24 hours.
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Request a Quote
Channel size and application are enough to start.
Request a Quote
Email us your machine model or brush size — we confirm fitment before quoting.
Email Us — info@manybrush.comWhatsApp — Chat NowFree samples in 3 days · MOQ 50 pcs · Reply within 12 hours
Construction & Options
Two decisions define the product: the backing, and the bristle.
Backing / Channel Types
| Type | Material | Best For |
|---|---|---|
| Metal channel, galvanised | Standard strip profile | General sealing, guarding, dust control |
| Metal channel, stainless | 304 / 316 | Food, pharma, washdown, corrosive environments |
| Aluminum | Extruded profile | Lightweight guarding, long spans |
| PVC / plastic | Co-extruded | Low-cost sealing, non-marring contact |
| H-profile / U-profile | Per application | Door seals, guide tracks |
| Single-stem, double-stem, bespoke | Per drawing | Non-standard mounting |
Bristle Materials
| Material | Diameter | Temp | Typical Use |
|---|---|---|---|
| Nylon 6.6 | 0.10 – 1.30 mm | up to 120 °C | General sealing, dust, gentle contact |
| Polypropylene (PP) | 0.15 – 1.00 mm | up to 90 °C | Wet environments, chemical resistance |
| Abrasive nylon (SiC) | 0.40 – 1.00 mm | up to 120 °C | Deburring, surface prep |
| Conductive / anti-static | 0.20 – 0.60 mm | — | Static dissipation |
| Carbon steel wire | 0.10 – 0.60 mm | — | Aggressive cleaning, high temp |
| Stainless wire (304/316) | 0.08 – 0.50 mm | up to 400 °C | Food, corrosion, high temp |
| Brass / copper wire | 0.10 – 0.30 mm | — | Non-sparking, electrical |
| Horsehair / hog bristle | Natural | up to 80 °C | Delicate surfaces, heritage work |
| Sisal | Natural | — | Polishing, natural-fibre dusting |
| PBT / polyester | 0.15 – 0.80 mm | — | Wet applications, good recovery |
Dimensions
| Channel width | 4 – 40 mm (standard profiles) |
| Channel height | 5 – 25 mm |
| Bristle trim length | 5 – 150 mm |
| Overall length | Continuous — 100 m coils or pre-cut pieces |
| Bristle density | Light / standard / dense / extra-dense |
Core Applications
Eight of the most common uses — if yours is not here, it is probably a variation of one of them.
Door & Gate Sealing
On industrial doors, rolling shutters, dock doors and cleanroom entries — blocks dust, drafts, insects and light.
Conveyor Skirting
Mounted along the belt edge to prevent material spillage, or over the belt to remove carryback.
Machinery Guards
Fills the gap between moving parts and fixed frames — an inexpensive way to close a pinch point.
Dust & Air Gap Stops
In HVAC and powder handling, strip brushes act as air gap stops without the friction of a solid seal.
Escalator Skirts
The industry-standard deflector brush, preventing debris entry and shoe entrapment.
Food Processing
Stainless backing plus FDA-compliant nylon; lifts product from belts without scratching.
Static Dissipation
Conductive bristles on packaging lines and electronics assembly to prevent ESD damage.
Deburring & Finishing
Abrasive-filled nylon strip brushes on automated deburring stations.
The Three Variables That Decide If It Works
Most buyers specify channel width and bristle length and stop there. These three determine the outcome.
1. Bristle projection
Rule: projection = gap + 10–20%.
Less and the brush does not contact. More and the bristles splay, drag increases, and filament fatigues early.
2. Density
Density is filament count per unit length, not “how thick it looks.”
- Light ~700/100 mm — guiding
- Standard ~1,000 — general sealing
- Dense ~1,400 — dust, guarding
- Extra-dense ~1,900+ — fine powder, food
3. Mounting support
A strip brush spanning more than about 1,000 mm without intermediate support will sag and deflect in service.
Specify support clips or rigid backing every 500–800 mm.
Custom Manufacturing Process
From your drawing to a shipped coil, usually inside four weeks.
No tooling cost if your spec matches one of our 300+ existing profiles. That is the single biggest variable in strip brush lead time and price.
- In-house tufting, channel forming, cutting and end-trimming — no subcontracting
- Any length, any density — built to order, not to a fixed catalog
- Free engineering advice on projection, density and interference fit
- REACH / RoHS material declarations and ISPM-15 compliant packing
- Send your specDrawing, sample, or photo with dimensions and application.
- Engineering review — 24 hWe confirm channel profile, bristle spec and mounting.
- Quotation — 1 dayIncluding tooling if a bespoke profile is needed.
- Sample — 5–7 daysFor standard profiles.
- Approval → production — 15–25 daysDimensional report plus optional third-party inspection.
Frequently Asked Questions
What is the difference between a strip brush and a brush seal?
They are the same product — “brush seal” is used when the function is sealing
(doors, air gaps) and “strip brush” when the function is cleaning or guiding. Construction is identical.
Can you make a strip brush to a very specific channel size?
Yes. Send the channel width, height and wall thickness, or a cross-section
drawing. For profiles that require a new extrusion or roll-forming die, we will quote the tooling cost and
lead time up front.
What bristle projection should I choose?
General rule: bristle projection should be 10–20% longer than the gap you need
to seal, so the bristles deflect and create contact without excess drag. For high-speed applications, use a
shorter, denser trim to reduce flutter.
How do I specify bristle density?
Either by the standard designation (light / standard / dense / extra-dense) or by
filament count per unit length. For sealing against fine dust, extra-dense is usually necessary.
What is the maximum length you can supply?
Continuous lengths are limited by shipping, not by production. We regularly ship
50–100 m coils and cut to length on site.
Do you supply the mounting hardware?
Yes — aluminum or steel hold-down plates, end caps and fixing clips are available
with the brush.
Can you supply food-grade / FDA-compliant strip brushes?
Yes. Stainless steel 304/316 backing with FDA-compliant nylon or PP bristle, plus
material declarations for your audit file.
Related
Send a drawing. Get a counter-sample in 5–7 days.
300+ channel profiles in stock, so most specs need no tooling. MOQ 50 pcs. Free samples, 3-day dispatch.
Ask For A Quick Quote
We will contact you within 1 working day, please pay attention to the email with the suffix “@manybrush.com”.