Coiled flexible strip brush with a bendable polymer backing

Custom Flexible Strip Brushes

Bendable polymer-backed strip brushes for sealing, guiding, wiping, and spray control along curved or irregular paths. Available in fused or tufted constructions, made to your drawing.

Request a Flexible Strip Brush Quote

Bendable backing · Curved paths · Custom profiles

What Is a Flexible Strip Brush?

A flexible strip brush is a custom strip brush 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.

A metal channel strip brush uses a formed metal carrier for straight or formed profiles where a more rigid backing is needed.

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 flexible strip brush with black bristles and a white backing curved into an arc

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

Close-up of a rotary heat exchanger seal brush showing stitching along the bristle strip

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

Minimum bend radius depends on the backing material, cross-section, bend direction and trim; confirm it against the installation path.

Clip-on profile

H and F profiles

Side-tufted profile

Square profile

Front or side tufting

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.

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

Temperature reference: −60°C to 135°C for selected configurations, subject to backing grade, filament, and operating conditions
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

Send your drawing or sample photos to start a quotation. If the profile is not yet defined, show the mounting space and explain what the brush needs to do.

Send Your Drawing

Drawing or sample photos
Key mounting dimensions and bristle requirements, if known
Required quantity

Packaging

Flexible strip brushes can be coiled or cut to length and packed to protect the backing profile and filament during shipment. A packaging coil is not a preformed spiral or helical brush; specify the installed diameter, pitch and direction separately.

Coiled black flexible strip brushes arranged on a worktable

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