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Siliconized weather strip

Door and Window Flex Siliconized Brush Weather Seal Strip

Flexibility: The Door and Window Flex Siliconized Brush Weather Seal Strip is made of a flexible material that allows it to conform to any shape and size of the gap. This feature ensures that it provides an airtight seal, preventing air leaks and reducing energy loss.
Brush Seal: The weather seal strip has a brush-like design that effectively blocks out drafts, dust, insects, and other unwanted elements. This feature ensures that your home or office stays clean, comfortable, and secure.
High-Quality Material: The Door and Window Flex Siliconized Brush Weather Seal Strip is made of high-quality materials that can withstand extreme weather conditions, including hot summers and freezing winters. This feature ensures that the seal strip will last for years without cracking, fading, or peeling.
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Description

Standard & Specification

Production Process

Series: Siliconized series
Material:  Polypropylene yarn / Pp / Silicone / Rubber / PVC / Plastic
Shape: Strip / Flat / Square / Circular / Rectangular / Irregular
Installation method: Groove fitting
Function: Water-proof, moisture-proof
Feature: Special silicated treatment process, improves the water-proof capability. With anti-aging ingredients, the weather strip is more durable

Door and Window Flex Siliconized Brush Weather Seal Strip - Enhanced Thermal and Acoustic Sealing Solutions

The Door and Window Flex Siliconized Brush Weather Seal Strip is an engineered sealing solution designed for superior performance in various residential and commercial applications. This product is formulated to mitigate energy loss by preventing air infiltration and exfiltration, thereby enhancing the thermal efficiency of building envelopes. Its core function is to create a reliable barrier against dust, moisture, and pests, while simultaneously reducing noise transmission. The design integrates a resilient polypropylene brush with a robust siliconized backing, ensuring long-term durability and consistent sealing performance across diverse environmental conditions. This product is a key component for **passive house standards** and **energy-efficient building construction**.

Key Features

  • High-Density Brush Filament: Composed of tightly woven polypropylene filaments, the brush effectively conforms to irregular surfaces and gaps, providing a continuous seal without impeding the smooth operation of doors and windows.
  • Siliconized Backing: The filaments are infused with a specialized silicone treatment. This feature significantly reduces friction and prevents moisture absorption, ensuring the seal remains flexible and effective over its service life, even in humid environments.
  • Adhesive and Mechanical Stability: Features a high-tack acrylic adhesive that provides a secure bond to various substrates, including aluminum, vinyl, and wood. This ensures **easy installation** and robust performance.
  • Broad Temperature Tolerance: The material composition maintains its physical integrity and sealing properties within a wide operational temperature range, from -40°C to +70°C, making it suitable for both cold and hot climates.

Technical Specifications

Parameter Value Test Method
Material Siliconized Polypropylene Brush, Acrylic Adhesive -
Operational Temperature -40°C to +70°C ISO 291
Brush Height 6mm to 20mm (Customizable) Micrometer Measurement
Backing Width 5mm to 12mm (Standard) Caliper Measurement
Adhesive Peel Strength ≥ 2.0 N/cm ASTM D3330

Application Areas

This product is a strategic solution for industries requiring reliable sealing for **fenestration systems**, including:

  • Residential and Commercial Windows (sliding, casement, double-hung)
  • Sliding Doors and Patio Doors
  • Aluminum Extrusions and Curtain Walls
  • Cabinet and Wardrobe Doors
  • HVAC and Cleanroom Environments

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Frequently Asked Questions

1. What are the key performance differences between a siliconized brush seal and a standard vinyl or foam weatherstrip?

The siliconized brush seal offers superior long-term performance and durability. Unlike vinyl or foam strips that can compress and lose their elasticity over time, the brush filaments maintain their loft and sealing capability, especially in high-traffic applications. The silicone treatment on the filaments significantly reduces operational friction, ensuring smoother door and window movement while providing a consistent, airtight seal. For specific comparison data on air permeability or acoustic performance, please contact our technical support team for a detailed analysis based on your project specifications.

2. How does this product address the common problem of air infiltration and thermal bridging in building envelopes?

This product is specifically engineered to create a continuous and dynamic barrier against air leaks. The high-density brush conforms to the unique contours of gaps, filling voids that rigid seals cannot. By preventing uncontrolled air exchange, it directly mitigates thermal bridging—the transfer of heat across a material, which is a major source of energy loss. This leads to a more stable indoor temperature, reducing the load on HVAC systems and resulting in significant energy savings. For a detailed **thermal performance assessment**, our engineers can conduct a free consultation to evaluate how this seal integrates into your specific window or door system design.

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Fortex(Shanghai) Industrial Co., Ltd.

About Us

Fortex(Shanghai) Industrial Co., Ltd is China wholesale Door and Window Flex Siliconized Brush Weather Seal Strip Company. Established in 2021, FORTEX is a exporter, suppliers and company specialized in the design, development and production of Door and Window Flex Siliconized Brush Weather Seal Strip Suppliers. We are located in Shanghai with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
We have more than 30 employees, annual sales over USD 3 million, and currently export 50% of our products worldwide. Our well-equipped facilities and sophisticated quality control throughout all stages of production enable us to guarantee total customer satisfaction.
If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.
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Our Certificate

  • Quality management system certification certificate
  • Quality management system certification certificate
  • SGS_ROHS
  • SGS_ROHS
  • SGS_Tensile_UV_Exposure_Test
  • SGS_Tensile_UV_Exposure_Adhesive_Test

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