Fireproof intumescent automatic drop door seal ADB-010  is our company new  product. High quality silicone seal with long life service,Fireproof Intumescent Seal cover outside, Aluminum body with gold color copper rod.When the door is closed, internal sealing strip will be down automatically seal the space between door and ground.

This product surface is matte silvery white aluminum alloy profile, after hard anodizing treatment, sealing material is silicone rubber. It is easy to install on the bottom of the door.

When the door is closed, the door frame squeezes the adjusting stainless steel screw to make the sealing strip move downward to close the gap at the bottom of the door.

As long as the door open a few millimeters, the seal will automatically lift off the ground, does not hinder the door open and close, will not wear the ground.

The utility model can effectively block the functions of mosquitoes, flies, reptiles, air-conditioner leakage, noise pollution, wind dust, etc. . Installation of a flat rear door appearance without any impact. . .

Suitable for the wooden fire door, steel fire door, industry doors, hotel doors etc，Prevent dust, hot and cold air, noisy sound, light from door bottom