Door Seal Systems

Brush Door Seals

Flexible Brush Door Seals for Air, Weather, Pest, and Environmental Control

Brush door seals provide a highly flexible and durable sealing solution for doors, dock equipment, and industrial openings where traditional rubber or vinyl seals fall short. The nylon bristles conform to irregular surfaces, allowing consistent contact along uneven gaps while maintaining airflow control and long service life.

Brush seals are the only fully flexible, air-tight door seal option available for many door and dock leveler applications. In addition to door sealing, brush technology is widely used as a deflector, product guide, sound barrier, and temperature control solution in manufacturing and material handling environments.

Brush seals are manufactured by looping nylon filament around a central wire, crimping it into a steel channel, and trimming it to precise specifications—often exceeding 1,200 filaments per inch. The brush assembly slides into an aluminum extrusion engineered to match the door type and sealing requirement.

Brush sizes range from ¼″ up to 24″, and extruded holders can be produced in multiple profiles and angles to suit virtually any application. Holder designations identify size, brush angle, aluminum finish, extrusion length, and brush filament length—allowing precise selection for both standard and custom installations.

Memtech also maintains a dedicated custom design department, capable of developing specialized brush seal solutions for unique door systems, equipment layouts, and environmental challenges.

Brush Door Seals Are Designed and Tested For:

Hot weather applications — reducing air loss and improving cooling efficiency
Cold weather applications — limiting infiltration of cold air
Uneven surfaces — bristles nest together to follow contours
Long-term durability — proven performance in high-cycle environments
Superior sealing performance compared to vinyl or rubber strips

Brush Door Seal Products

Brush Seal Mountings

Quotes & Contact

Non-Chemical Pest Control

Brush door seals create a physical barrier that helps prevent insects and small animals from entering facilities—without the use of chemicals.

Air Flow Control

Effectively control air leakage for heating and cooling by sealing gaps around doors and access points.

Dust & Debris Control

Protect clean rooms, equipment enclosures, and production areas from airborne dust and contaminants.

Light & Sound Control

Reduce unwanted light transfer and dampen sound infiltration in sensitive environments.

Nylon Brush Seal Performance

Type 6 nylon brush seals are UL-rated as gasket material for fire doors and perform reliably from −100°F to 200°F.