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Question:

Polyurethane sandwich panel system of fire resistance, the general can be how much you like 100 thick

Polyurethane sandwich panel system of fire resistance, the general can be how much you like 100 thick

Answer:

Polyurethane foam can only achieve B1 flame retardant, the system's fire resistance by the two sides of the composite material fire resistance decision.
Internal use of B1 grade polyurethane foam core material, fire resistance and panel material. For example, both sides of the use of cement-type plate and other composite, you can achieve composite A-class. While the use of color composite plate on both sides of the sandwich panel can not achieve composite A-class.

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