Coiled flexible strip brush with a bendable polymer backing

Custom Flexible Strip Brushes

Bendable polymer-backed strip brushes for curved, angled, and irregular paths. Choose fused or tufted construction, backing profile, filament, trim, row count, and supply length for sealing, guiding, wiping, and controlled contact.

Request a Flexible Strip Brush Quote

Bendable backing · Curved paths · Custom profiles

What Is a Flexible Strip Brush?

A flexible strip brush replaces the rigid metal channel with a bendable polymer backing. It can follow curved edges, irregular openings, and shaped equipment where a straight metal-backed strip brush cannot fit easily. Flexible strips can be supplied in continuous coils or cut lengths, depending on the construction and profile.

Explore the complete custom strip brush range →

Flexible polymer-backed strip brush bent into a curved installation path

Flexible Strip Brush Constructions

Select the retention method and backing structure before confirming the profile, filament, trim, and supply length.

Fused extruded flexible strip brush supplied in a continuous coil

Fused / extruded flexible strip brushes

Fused construction: Filaments are fused directly into a continuous extruded backing.
Materials: PP or nylon filament with flexible PP or nylon backing.
Trim range: 20–300 mm.
Continuous length: Extruded backing can be produced up to 250 m.
Working form: Metal-free, corrosion-resistant when chemically compatible, and able to follow curved or irregular contours.
Configuration: A fused construction can provide a dense, continuous filament line.

Tufted flexible-profile strip brushes

A flexible profile is formed first, then filament bundles are tufted into it.
Nylon or PP filament can be tufted into flexible rubber, TPE, or TPV profiles.
Custom tuft-hole spacing: Closer spacing increases density and can improve sealing contact.
Row count, fill density, and contact pattern can be adjusted.
Suitable for larger profiles and clip-on or shaped mounting sections.
Spray-suppression versions can use Clip-on, square, H, or F profiles, typically in 25 m rolls.

Rotary heat exchanger flexible seal brush in a coil

Flexible seal brush installed around a rotary heat exchanger

Central plastic sealing fin in a rotary heat exchanger seal brush

Slotted mounting holes in a rotary heat exchanger seal brush base

Rotary Heat Exchanger Seal Brushes

Flexible seal brushes fit around the heat-wheel perimeter and internal crossbars to reduce air bypass and help maintain heat-recovery performance.

PVC mounting base: Flexible carrier with optional mounting holes.
BCF yarn bristles: Primary flexible sealing contact.
Central plastic sealing fin: Supplements the bristle contact.
Reinforced adhesive: Supports bristle retention.
Roll packaging: Reduces shipping space before installation.

Profile and Mounting Options

Plain flexible backing: Coils, cut lengths, and curved paths.

Clip-on profile: Grips a compatible sheet-metal or panel edge.

H, F, Y, and square profiles: Defined mounting faces for selected assemblies.

Front- or side-tufted: Positions contact to match the installation direction.

Straight strips: Linear paths and cut-length installations.

Spiral / coiled forms: Preformed for circular or helical paths.

Custom profile: Developed from a drawing when a standard section does not fit.

Clip-on profile

H and F profiles

Side-tufted profile

Square profile

Front or side tufting

Backing and Filament Materials

Flexible backing

Flexible PP or nylon for fused / extruded strips
TPE, TPV, TPU, PVC, EPDM, silicone, thermoplastic rubber, rubber, or flexible PP for selected profiles
PVC mounting base for rotary heat-exchanger seal brushes

Filament

PP or nylon: General sealing, guiding, wiping, and spray control
Horsehair or tampico: Softer contact and light dusting
Steel wire: Selected contact duties after surface and retention review
BCF yarn: Rotary heat-exchanger seal brushes with a central plastic fin

Selected TPE / TPV constructions

Typical working-temperature reference: −60°C to 135°C
UV, ozone, and anti-aging performance depends on the selected grade and project requirements
Material grade, hardness, filament diameter, and environmental performance are confirmed per application

Common Industrial Uses

Flexible profiles provide sealing, guiding, wiping, spray control, and controlled contact along paths that rigid carriers cannot easily follow.

Flexible strip brush sealing a cabinet or cable pass-through opening

Doors, cabinets, server racks, and cable pass-throughs

Flexible strip brush installed around CNC and machine enclosure equipment

CNC and machine-enclosure sealing, wiping, and guiding

Flexible strip brush fitted to a truck mudguard for road spray suppression

Truck mudguard and road-spray suppression

Curved and irregular equipment openings
Conveyor edge guiding and product support
Rotary heat-exchanger perimeter and crossbar sealing

Customization and Quote Information

If the profile is not yet defined, send the installation drawing and the function the brush must perform.

Preferred construction and backing profile or cross-section
Final form: straight, curved, spiral, or coiled
Strip or roll length, curved path, and drawing
Filament, trim, diameter, density, and row count
Mounting method and working environment
Required quantity

Packaging

Flexible strip brushes can be coiled or cut to length and packed to protect the backing profile and filament during shipment.

Flexible strip brush rolls packed for shipment

FAQ

What is the difference between a flexible strip brush and a metal channel strip brush?

A flexible strip brush uses a bendable polymer backing for curved or irregular paths. A metal channel strip brush uses a rigid metal carrier and is better suited to straight sections or formed metal profiles.

What is the difference between fused and tufted flexible strip brushes?

Fused strips bond the filament into a continuous extruded backing. Tufted strips secure individual filament bundles in a flexible profile, allowing the row count and tuft spacing to be adjusted.

Can flexible strip brushes be supplied in rolls?

Yes. Continuous coils and cut lengths are available for selected constructions. Coiling for packaging is different from a preformed spiral or helical brush, which requires inside diameter, outside diameter, pitch, rotation direction, and overall length.

Can a flexible strip brush follow any curve?

The allowable curve depends on the backing material, cross-section, bend direction, and trim. Send the installation path or drawing so the minimum bend radius can be checked.

What information is needed for a custom flexible strip brush?

Provide the profile or mounting space, length, curve, filament, trim, working environment, and quantity. A drawing or sample is helpful when the section is non-standard.

Need a Flexible Strip Brush for a Curved or Irregular Path?

Custom production from your drawing. Large-volume production is supported for OEM and replacement projects.

Send Your Drawing