There is a certain relationship between the sealing and thickness of the door, but it is not the only determining factor.

Thicker doors can help improve the sealing to a certain extent. Because thicker materials are usually stronger, they can better withstand the pressure exerted by the sealing components, making the seal tighter.

However, the sealing of the door depends more on the following aspects:

The quality and design of the sealing components:

High-quality sealing strips, such as those with good elasticity, weather resistance and fit, can effectively fill the door gap and prevent the penetration of air and sound.

Reasonable sealing structure design, such as multi-pass sealing, sealing contact surfaces of different shapes, etc., can enhance the sealing effect.

Processing accuracy of door frame and door:

The dimensions of the door frame and door are precisely matched, and the gaps are uniform and small after installation, which is conducive to achieving good sealing.

Installation quality:

The technical level and installation process of the installer will affect the sealing of the door. If the installation is not done properly, even if the door and sealing components themselves are of good quality, the sealing may not be tight.

Some thinner doors, if equipped with high-quality sealing strips and carefully installed, may not be worse in sealing than some thicker doors with poor sealing components and installation.

In summary, the thickness of the door has a certain influence on the sealing, but it is not decisive. It is necessary to comprehensively consider many factors such as sealing components, processing accuracy and installation quality to judge whether the door is sealed.