FOAMING MATERIAL

PROBLEM TO BE SOLVED: To provide a foaming material capable of effectively suppressing the flowing of a foaming material. SOLUTION: The foaming material 11 is provided with a foaming member 12 formed from the foaming material foamed by external heating. The foaming member 12 is provided with a first foaming member 14 and a second foaming member 15. The first foaming member 14 is formed from the first foaming material and the second foaming member is formed by the second foaming material. The composition of the foaming material is different from that of the first foaming material. A first step part 16 (first projection part 17) is formed on an outer surface of the first foaming member. The foaming member 12 is superposed and constituted in the state that the first foaming member 14 and the second foaming member 15 are surface-contacted and that it surrounds the first step part 16 (first projection part 17). The foaming material 11 is fixed to a portion to be fixed of a structure member and sound-absorption property, sound-shutting off property and vibration-proofing property of the structure member are enhanced by the foaming material formed from the foaming member 12. COPYRIGHT: (C)2007,JPO&INPIT