Currently there are many companies trading products such as fire protection (fire doors, fire resistant walls, ceiling fire protection, fire resistant glass ...) want to bid used non-standard raw materials or cheap materials , following Ngouyendoor would like to share some experiences to customers select the right products you need to buy.
Fireproof steel door: Currently there are more fire resistant steel door fireproof but universal level station is fire resistant doors from 60 minutes to 120 minutes fire protection standards Korea or some developed countries mean fireproof level the material will change as:
60-minute fire resistant steel doors: Thickness frame wall thickness depending on which investors require suppliers to manufacture appropriate but thick steel frame is 1.6 mm minimum for long durability should choose galvanized zinc, currently there are many manufacturers want to lower costs low has used only 1.2mm thick steel frame with steel suppliers 1mm but only used black steel.
60-minute fire resistant doors should use 0.8mm thick galvanized steel then increase the time every 30 minutes fire protection to the increased steel thickness 0.2mm. So steel fire doors 90 minutes and 120 minutes off of 1mm is 1.2 mm, many vendors have produced dishonest when they apply for a French-made for 0.8 to 1mm thick door for the fireproof time 120 to 180 minutes later they go to sale, when customers request them 60 minutes to 120 minutes and put the paper.
Inside door: Honeycomb or vitreous, many companies said that Honeycomb is fireproof insulating layer, but this is how they are produced without understanding, Honeycomb paper layer honeycomb door surfaces it helps them I flat after pressing glue, so in the following paper that the fire protection? between layers of steel and Honeycomb will help fireproof glue connection between two materials together in addition to this glue layer covers the entire surface and beehive honeycomb layer can not make contact with the air so the fire can not be this fire according to the paper layer thickness of fireproof steel during testing was Ngonguyendoor
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