All-round protection

Sealing brushes – top shape

The sealing brushes in top shape provide reliable protection against dust, drafts, and light. They are available in a wide range of diameters and materials.

Your benefits at a glance:

  • Diameters from 40 to 1000 mm achievable
  • Housings made of steel or stainless steel
  • Effective protection against dust, drafts, and light
  • Wide selection of filling materials
  • Compact design for universal applications

Sealing brushes – top shape

We offer you the following selection criteria:

  • All types of fill material, such as natural bristles, animal hair, plant fibres, and synthetic filaments.
  • Mounting material made from galvanized steel strip and stainless steel strip (grades 1.4301, 1.4571).
  • The same production method can be applied to manufacture sealing brushes in curved shapes—not only in semicircular form, but also in other arc segment configurations.

The larger the dimensions, the easier it is to install arc segments that are divided multiple times along the circumference.
In addition to the round pot shape, sealing brushes can also be bent into any other desired form.

Models

* Smaller and larger diameters available on request.

Sealing brushes – top shape
Type D min. - max. (mm)* Fill height BH min. – max. (mm) Total height GH min. – max. (mm) DXF
6a - 15 200.0 - 500.0 5.0 - 75.0 20.0 - 90.0 DXF
6a - 25 200.0 - 500.0 5.0 - 75.0 30.0 - 100.0 DXF
6d - 40 500.0 - 1000.0 10.5 - 190.0 50.5 - 230.0 DXF
6d - 50 500.0 - 1000.0 25.0 - 580.0 75.0 - 630.0 DXF

Fill material

The fill material we use for your brushes depends on your application, industry, and product. Do you have questions about fill materials? Feel free to contact us.

Brush construction
Type of fill material Fill material Properties
Synthetic fibres PP (Polypropylen) Polypropylene, acid-resistant, smooth or crimped, colors available on request. Diameter 0.10 – 1.00 mm.
Synthetic fibres PAP (special bristle for wet applications based on PP) Special bristle for wet applications based on polypropylene, offering longer service life due to acid resistance at high temperatures; available in smooth or crimped versions, colors on request, diameter 0.15 – 1.00 mm.
Synthetic fibres PBT (Polyester) Polyester, smooth or crimped, colors available on request, diameter 0.20 – 3.00 mm.
Synthetic fibres PA 6.6 (Polyamid) All polyamid qualities have strong recovery properties. PA 6.6 is the filament with the highest rigidity in dry application before PA 6.12 and PA 6. In case of wet use PA 6.12 ranks before PA 6.6 and PA 6 because of the lowest water absorption.
Synthetic fibres PA 6.12 (Polyamid) Polyamide, smooth or crimped, colors available on request, diameter 0.08 – 3.00 mm. All polyamide grades are characterized by excellent recovery properties. In wet applications, PA 6.12 offers the best stiffness due to its minimal water absorption.
Synthetic fibres KBL (PA-based, alkali- and temperature-resistant) Special bristle based on polyamide, highly resistant to alkalis even at elevated temperatures; available in smooth or crimped form, brown in colour, with diameters ranging from 0.08 to 1.50 mm.
Synthetic fibres HCB (high-temperature and chemical-resistant) High-temperature resistant (up to max. 200 °C) and extremely chemical-resistant special bristle, smooth, colors available on request, diameter 0.20 – 0.60 mm.
Synthetic fibres PE (Polyethylen) Polyethylene, smooth, slotted or unslotted in X-profile, colors available on request, diameter 0.08 – 1.00 mm.
Synthetic fibres CON (electrically conductive special bristle) Electrically conductive special bristle (up to 5 × 10 kOhm/cm²) based on polyamide, smooth, black, temperature resistance up to 100 °C, Ø 0.13 mm. For large order volumes, the following bristle diameters are also available: 0.21 mm, 0.41 mm, 0.52 mm, and 0.64 mm.
Natural fibres Chinese hog bristles (CHS) Chinese hog bristles, medium-hard to hard, grey or black in colour.
Natural fibres ROS (horsehair – soft to medium-hard) Horsehair, soft to medium-hard, black in colour.
Natural fibres ROS-GU (horsehair – hard) Horsehair, hard, natural grey in colour.
Natural fibres MAH (Mane hair) Horse hair, soft, natural grey/natural black
Natural fibres ZIE (goat hair) Goat hair, exceptionally soft, suitable for sensitive surfaces. Classified as fine hair and processed by KULLEN exclusively in premium quality.
Plant fibre FIB (Mexico fibre – medium-hard) Mexico fibre, medium-hard.
Plant fibre FIB-GU (Mexico fibre – medium-hard to hard) Mexico fibre, medium-hard to hard, grey in colour.
Plant fibre SIS (sisal cord) Sisal cord – cord diameter 2.8 to 5.0 mm
Infinite Possibilities

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Your success is our success

Find the right solution

Do you have questions about our products or are you looking for a different solution? Get in touch with us, we’re here to help.