The padding in the anti theft door is said to be a moisture proof version, what is the material of t

Generally, ordinary anti-theft doors are filled with honeycomb paper, and some high-end ones are filled with Lv honeycomb, and if the fire door is fireproof, perlite slabs or foam are used.

Summary. The fillers inside the security door mainly include: honeycomb paper, aviation aluminum foil, and perlite slabs. >>>More

The better ones are filled with polyurethane foam, some are made of rock wool, and some are made of straw and cardboard.

The filling inside of the Gujia security door is aluminum foil, which has the functions of heat protection, sound insulation and fire prevention, so you can choose, as for how thick the front and back sides are, it depends on the situation.

The four types of fillers allowed by the state are: honeycomb paper (i.e., carton board), perlite cement, rock wool, and aluminum foil. Generally, the fireproof door of the real estate is made of cement or perlite, which is good for fireproofing, and the disadvantage is that it increases the weight of the door leaf, which will deform and crack the hinge for a long time, causing the door leaf to fall. Honeycomb paper is the most resistant to cheap filling, which can be corroded due to seasonal changes and other changes, resulting in an empty shell. >>>More