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Anonymous users2024-01-24It should be the same, it is all polyurethane, and it is also used for filling and gluing. If there must be a difference, the styrofoam used for fire doors is added with flame retardant ingredients, and the anti-theft doors are not added. (That's how I understand it).
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Anonymous users2024-01-23Generally, it is strictly forbidden to use foam for fire doors, because styrofoam is combustible, and you are pressing a fire door.
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Anonymous users2024-01-22You're talking about polyurethane foam caulk, right? Go to the hardware and building materials store and buy it.
For example: Jin'an building materials store in Futian District, Shenzhen.
Yongkang Door Expo when I saw this factory, I didn't care much about it, there was a door fair in Shanghai on September 28, and I will help you pay attention to it at that time.
Steps? This one!!! It's easy! There are no steps! First sprinkle the glue on the iron plate façade, and then specially brush the plastic plate!
You're definitely talking about polyurethane caulk, that thing is only used for caulking, fixing air is a strong point, fixing the door is not good. Or do you have to fix it with something special.
The strength of cement pouring is large, and the foaming agent is trouble-free.
The poor viscosity is basically the kind of glue on the market. Or choose some good brands of glue, and use it with confidence.