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Type D silicone door and window sealing strip

Product Description

Product Introduction
The D‑shaped silicone door and window sealing strip is a high‑performance sealing component made from premium silicone, featuring a “D”‑shaped cross‑section. Specifically designed to seal gaps in doors and windows, it combines multiple functions—wind resistance, sound insulation, thermal insulation, and dust protection—and is widely compatible with a variety of residential and commercial door and window applications.
Core Material and Structure
Main material: Made from food-grade and industrial-grade eco-friendly silicone, offering a soft, resilient texture with excellent rebound, non-toxic and odorless, and compliant with environmental standards.
Sectional profile: Classic D‑shaped hollow/compact structure, with curved surfaces conforming to the door or window sash and flat sides securely fixed to the frame, ensuring uniform compression and seamless sealing with no dead zones.
Adhesive configuration: Comes with a high‑strength acrylic mesh backing that offers long‑lasting adhesion, excellent resistance to temperature and humidity, and ensures secure, durable bonding that resists peeling.
Key Performance Advantages
Weather‑resistant and anti‑aging: It operates over a wide temperature range (-60°C to +220°C) and, when exposed to prolonged sunlight and rain, does not harden, crack, or deform, resulting in a service life far exceeding that of conventional rubber or PVC seals.
High‑efficiency sealing: The D‑shaped design provides a robust compression seal, effectively sealing gaps around doors and windows, preventing air convection between indoor and outdoor environments, reducing energy consumption for air conditioning and heating, and enhancing indoor thermal insulation.
Soundproofing and Noise Reduction: The silicone material, combined with a hollow structure, effectively absorbs sound, blocking external noise from entering and creating a quiet indoor environment.
Multi‑functional protection: Combines windproof, dustproof, waterproof, insect‑proof, and impact‑resistant features to reduce wear from opening and closing doors and windows, thereby extending their service life.
Easy to install: Simply peel and stick—no tools required. Cut to size to fit any window or door, and complete the installation yourself with ease.
Scope of Application
Various types of doors and windows: wooden doors, PVC‑steel windows, aluminum alloy windows, security doors, sliding doors, and casement windows.
Other applications: sealing gaps in cabinets, wardrobes, equipment enclosures, and vehicle doors and windows.
Installation Instructions
Clean the adhesive surfaces of the door and window frames, ensuring they are dry, free of oil, and free of dust.
Measure the gap length and cut a sealing strip to the corresponding size.
Peel off the adhesive protective film, apply it evenly along the frame’s edge, and press firmly to ensure a tight seal.
Leave the doors and windows closed for 24 hours to allow the adhesive to reach its optimal bonding strength.

Hebei Qunwo Rubber Products Co., Ltd. We specialize in manufacturing a wide range of sealing strips and seals, including silicone sealing strips and seals, PVC sealing strips, rubber and plastic products, EPDM foam strips, EPDM seals, automotive composite sealing strips, marine and cold‑storage sealing strips, self‑adhesive high‑temperature and oil‑resistant sealing strips, oil‑resistant sealing tubes, mechanical sealing strips, engineering sealing strips, door and window sealing strips, custom‑shaped sealing strips, and various colored sealing strips. We also offer tailor‑made solutions to meet our customers’ specific needs. Samples can be mailed, drawings can be sent, or you can provide the profile directly; our experienced technicians will design the most suitable door and window sealing strips based on your specifications, ensuring that we satisfy the diverse requirements of each client. We maintain rigorous quality control and continuously enhance our after‑sales service, confident that our collaboration will be both enjoyable and mutually beneficial.

Test equipment

Customization Process

We provide a complete one-stop custom process: from requirement communication, design and sampling, to mass production, delivery and after-sales support, ensuring efficient and reliable customized sealing solutions.

Inquiry & Product Selection

Confirm Material, Size & Performance

Sample / Drawing / Profile Confirmation

Design & Quotation

Mold & Sample Making

Sample Approval & Order

Production & Quality Control

Delivery Confirmation

Type D silicone door and window sealing strip

The D‑shaped silicone door and window sealing strip is a high‑performance sealing component made from premium silicone, featuring a D‑shaped cross‑section. Specifically designed to seal gaps in doors and windows, it combines multiple functions—wind resistance, sound insulation, thermal insulation, and dust protection—and is widely compatible with a variety of residential and commercial door and window applications.

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Product Description

Product Introduction
The D‑shaped silicone door and window sealing strip is a high‑performance sealing component made from premium silicone, featuring a “D”‑shaped cross‑section. Specifically designed to seal gaps in doors and windows, it combines multiple functions—wind resistance, sound insulation, thermal insulation, and dust protection—and is widely compatible with a variety of residential and commercial door and window applications.
Core Material and Structure
Main material: Made from food-grade and industrial-grade eco-friendly silicone, offering a soft, resilient texture with excellent rebound, non-toxic and odorless, and compliant with environmental standards.
Sectional profile: Classic D‑shaped hollow/compact structure, with curved surfaces conforming to the door or window sash and flat sides securely fixed to the frame, ensuring uniform compression and seamless sealing with no dead zones.
Adhesive configuration: Comes with a high‑strength acrylic mesh backing that offers long‑lasting adhesion, excellent resistance to temperature and humidity, and ensures secure, durable bonding that resists peeling.
Key Performance Advantages
Weather‑resistant and anti‑aging: It operates over a wide temperature range (-60°C to +220°C) and, when exposed to prolonged sunlight and rain, does not harden, crack, or deform, resulting in a service life far exceeding that of conventional rubber or PVC seals.
High‑efficiency sealing: The D‑shaped design provides a robust compression seal, effectively sealing gaps around doors and windows, preventing air convection between indoor and outdoor environments, reducing energy consumption for air conditioning and heating, and enhancing indoor thermal insulation.
Soundproofing and Noise Reduction: The silicone material, combined with a hollow structure, effectively absorbs sound, blocking external noise from entering and creating a quiet indoor environment.
Multi‑functional protection: Combines windproof, dustproof, waterproof, insect‑proof, and impact‑resistant features to reduce wear from opening and closing doors and windows, thereby extending their service life.
Easy to install: Simply peel and stick—no tools required. Cut to size to fit any window or door, and complete the installation yourself with ease.
Scope of Application
Various types of doors and windows: wooden doors, PVC‑steel windows, aluminum alloy windows, security doors, sliding doors, and casement windows.
Other applications: sealing gaps in cabinets, wardrobes, equipment enclosures, and vehicle doors and windows.
Installation Instructions
Clean the adhesive surfaces of the door and window frames, ensuring they are dry, free of oil, and free of dust.
Measure the gap length and cut a sealing strip to the corresponding size.
Peel off the adhesive protective film, apply it evenly along the frame’s edge, and press firmly to ensure a tight seal.
Leave the doors and windows closed for 24 hours to allow the adhesive to reach its optimal bonding strength.