Next to us in our old factory in Tu Son town (Bac Ninh), Mr. Pham Gia Tuan (61 years old) confided: “From the 1980s, after returning from the army, I had the idea of making things fireproof material. I used to work on thermal missiles A72 of the Air Defense - Air Force so I have knowledge about this field. ”
Remembering on July 20, 1999, the pink night dance hall at 78 Hang Chieu (Hanoi) suffered a fire and heavy damage to people and property.
Then in 2002, a terrible fire in the ITC international commercial center building (Nam Ky Khoi Nghia, District 1, Ho Chi Minh City) killed 60 people.
Mr. Tuan said: "The cause of fire in ITC is when welding bolts positioned on the ceiling, welders to scale the temperature about 1,700 degrees shot into foam soundproof, causing rapid fire spread and big fire" .
From experience of more than 20 years of construction and installation of foams for singing stalls in Hanoi, Tuan said: The type of foam used for sound insulation is an easy fire material, once it is burned, it is difficult to extinguish because the fire smolders inside.
Because of this, Tuan cherished the intention to produce a non-flammable soundproof foam foam.
Recalling that period, Tuan said: “I often talk and make friends with many teachers teaching at Hanoi University of Technology. When I say this intention, my friends all laugh and wager, if anyone finds out that the fire-resistant material instead of foam will be covered with a bag of coffee a month. ”
My friend thought the talk was a joke, but I decided and did it really.
15 years of research and waiting
"Foam is the" culprit "that causes fires to be fierce and difficult to extinguish karaoke, sucking nearly all the walls and ceilings of the theater room. determined.