| 摘要 |
PROBLEM TO BE SOLVED: To enhance performance such as high-rigidification and weight reduction, and reduce the cost at the same time. SOLUTION: This laminate 1 is formed of a laminate structure of a gel-coat layer 2 and a back layer 3, 4. The back layer 3, 4 is formed of at least a first back resin layer 3 and a second back resin layer 4, and the forming magnification of the first back resin layer 3 which positioned on the side of the gel-coat layer 2, is set to be lower than that of the second back resin layer 4 which is positioned under the first back resin layer 3. The forming ratio of the first back resin layer 3 is set to 1-1.5 times, and the forming ratio of the second back resin layer 4 is set to be 2-7 times. Also, at least either one of the first back resin layer 3 and the second back resin layer 4 is formed in a plurality of layers. |
