1. Is the thickness of fire doors of different grades the same?
The fire rating of steel fire doors is determined according to the fire resistance time, which is not directly related to the thickness of the door leaf. However, the greater the thickness of the steel fire door, the more fireproof material is filled in the door leaf, and the fire resistance time will naturally be Get lengthened.
2. Why does the steel fire door degummed?
If the steel fire door is degummed, it means that the fire door may not use fireproof glue, or the quality of the fireproof glue is not good enough to withstand high temperatures!
3. Can steel fire doors use stainless steel hinges?
There is only one requirement for the hinges of steel fire doors, that is, they need to be fire-resistant. Usually, you can choose stainless steel fire-resistant hinges or galvanized and chrome-plated fire-resistant hinges. As long as the hinges that pass the inspection by the inspection department can be used.
