Black Anodised Aluminum Profile Door Seal Strip Brush

Product Overview

The black anodised aluminum door seal brush is designed to create a flexible barrier along door bottoms and edges. It combines a black anodised aluminum profile with a densely filled metal channel strip brush, providing a complete sealing assembly for commercial, architectural and industrial doors.

The aluminum carrier provides rigid support and holds the brush strip securely in position. Its black anodised finish improves surface durability and gives the product a clean appearance that coordinates well with dark doors and frames.

Dense synthetic filaments follow minor variations in floors and surrounding surfaces, helping reduce the passage of drafts, dust, light debris and insects without preventing normal door movement. The overall length, brush trim height, filament material and fixing-hole positions can be customized according to the door gap and installation requirements.

Product Features

• Black Anodised Aluminum Profile – The black anodised finish provides a clean appearance and improves the surface wear resistance of the aluminum carrier.
• Dense Synthetic Filaments – Closely packed filaments create a flexible barrier that helps limit drafts, dust, light debris and insects around door bottoms and edges.
• Secure Metal Channel Brush Insert – The filaments are held inside a metal channel with a retaining rod, providing consistent fill density and reliable filament retention.
• Flexible Contact with Uneven Surfaces – The brush filaments follow minor variations in floors and thresholds while allowing the door to open and close normally.
• Easy Installation – The aluminum carrier can be supplied with pre-drilled mounting holes and screws for installation on doors and frames.
• Custom Manufacturing – Overall length, filament trim height, filament material and mounting-hole positions can be customized according to the door gap and installation requirements.

Specifications

Materials and Construction

The door seal brush consists of a black anodised aluminum carrier and a separate metal channel strip brush. The carrier provides a straight, rigid mounting base, while the brush strip creates flexible contact with the floor, threshold or door frame.

Inside the brush strip, the synthetic filaments are folded around a retaining rod and mechanically secured within the metal channel. The completed brush strip is then fitted into the groove of the aluminum profile. This construction maintains consistent filament alignment and allows the aluminum carrier and brush component to perform different functions within the assembly.

Black Anodised Aluminum vs. Standard Aluminum

Anodising is an electrochemical surface-treatment process that increases the thickness of the natural oxide layer on aluminum. Unlike paint, the anodised layer becomes part of the aluminum surface.

Compared with an untreated mill-finish aluminum profile, the black anodised profile offers:

• Improved Surface Durability – The harder surface provides better resistance to handling marks, abrasion and everyday wear.
• Better Corrosion Resistance – The anodised layer provides additional protection against oxidation under normal indoor and sheltered outdoor conditions.
• Consistent Black Appearance – The dark finish coordinates well with black doors, frames, equipment enclosures and other visible installations.
• Easy Maintenance – The smooth finished surface can be wiped clean and maintains a more uniform appearance than untreated aluminum.

Applications

Black anodised aluminum profile door seal brushes are used where a flexible barrier is required along the bottom or edge of a door. The synthetic filaments remain in contact with the adjacent surface while flexing during door movement, making the brush suitable for gaps that may vary slightly in height.

Typical applications include:

• Commercial Entrance Doors – Helps reduce drafts, dust and insects around door bottoms while maintaining a clean appearance.
• Industrial and Warehouse Doors – Provides a flexible barrier along doors exposed to dust, light debris and changing floor levels.
• Garage and Workshop Doors – Helps close gaps between the door and floor where a rigid seal may not maintain continuous contact.
• Sliding and Hinged Doors – Can be installed along the bottom or vertical edge according to the direction and structure of the door.
• Equipment Enclosures – Seals access doors and openings on cabinets, machinery housings and other industrial enclosures.
• Interior Partition Doors – Helps reduce light, dust and airflow through gaps in offices, workshops and commercial buildings.

The appropriate filament trim height and density should be selected according to the size of the sealing gap and the amount of contact required. For outdoor or demanding environments, the expected moisture, sunlight and temperature should also be considered when choosing the filament material.

How to Specify Your Door Seal Brush

To manufacture the brush according to your door and sealing requirements, please provide the following information when requesting a quotation:

• Overall Length – Measure the required length along the bottom or edge of the door.
• Door Gap Size – Measure the distance between the door and the floor, threshold or frame. This helps determine the appropriate filament trim height.
• Installation Position – Indicate whether the brush will be installed on the door bottom, side, top or surrounding frame.
• Required Contact – Tell us whether the filaments should lightly touch the adjacent surface or flex against it to create a tighter barrier.
• Mounting-Hole Requirements – Provide the required hole diameter and spacing, or send a drawing showing the fixing positions.
• Working Environment – Describe any expected exposure to moisture, sunlight, chemicals or unusual temperatures so that a suitable filament material can be selected.
• Quantity – State the required number of pieces and whether all brushes use the same dimensions.

A technical drawing is preferred, but clear photographs with marked dimensions can also be used when a drawing is not available.

Related Door Seal Brushes

See our Commercial Door Bottom Sweep Brush for a traditional aluminum holder design, or the Concealed Fix Door Brush Seal for an installation with covered mounting screws.

Frequently Asked Questions

Where can this aluminum profile door seal brush be installed?

It can be installed along the bottom, side or top of a door, depending on the profile orientation and sealing requirement. Typical installations include commercial doors, industrial doors, warehouse doors, garage doors and equipment enclosures.

How do I choose the correct filament trim height?

Measure the gap between the door and the adjacent floor, threshold or frame. The filament should be long enough to maintain continuous contact without creating excessive resistance when the door moves. Send us the gap measurement if you need help selecting the trim height.

Can the aluminum profile be supplied with mounting holes?

Yes. Pre-drilled mounting holes can be produced according to the required diameter and spacing. Screws can also be supplied upon request.

Can the metal channel brush insert be replaced?

The brush strip is fitted into the groove of the aluminum carrier. Whether it can be removed and replaced after installation depends on the final profile design, end treatment and mounting arrangement. Please specify if a replaceable brush insert is required.

Why use black anodised aluminum instead of an untreated aluminum profile?

The anodised surface provides improved resistance to handling marks, abrasion and oxidation under normal service conditions. The black finish also coordinates well with dark doors, frames and equipment enclosures.

Is this door seal brush suitable for outdoor use?

It can be configured for sheltered exterior installations. For continuous exposure to sunlight, rain, moisture or extreme temperatures, please provide the working conditions so that a suitable filament material and metal channel can be selected.