Who said that the anti theft door is not soundproof and not insulated

This is a matter of filling, if you are brave you can remove the board on the security door and do the filling.

There are several stiffeners in the interlayer of the door body of the anti-theft door, and filled with foaming agent, rock wool and other fillers, rock wool is the material that can be soundproofed, but there are also anti-theft doors that do not put rock wool, the sound insulation effect of such an anti-theft door will be much worse, you want to modify the anti-theft door is a little difficult, the best way is to install a wooden door.

Anti-theft doors, of course, are not soundproof.

The internal structure of the acoustic panel is quite complex, a bit like a sponge. It's just that there are more suction holes to absorb volume. So you get the idea. What is the structure of iron? >>>More

Hello landlord, you can seal the door with sealant outside the door, and stick the wool strip on the door inside. There are several stiffeners in the interlayer of the door body of the anti-theft door, and filled with foaming agent, rock wool and other fillers, rock wool is the material that can be soundproofed, but there are also anti-theft doors that do not put rock wool, the sound insulation effect of such an anti-theft door will be much worse, you want to modify the anti-theft door is a little difficult, the best way is to install a wooden door. It is even possible to disassemble and pack fillings such as cotton. >>>More

There are several stiffeners in the interlayer of the anti-theft door body, and are filled with foaming agent, rock wool and other fillers, among which rock wool is the material that can be soundproofed, but there are also anti-theft doors that do not put rock wool inside, the sound insulation effect of such anti-theft doors will be much worse, it is a little difficult to modify the anti-theft door, and the best way is to install a wooden door. Security Door Matters Supplement: >>>More