Made in Japan. The main ingredient is made of weather resistant EPDM rubber, so it has superior performance compared to urethane sponges. Can be used as waterproof, windproof, dustproof, soundproofing, and insulation in the gap of structures such as vehicles, electric, residential and equipment. The compressive load (stress) is small, so the structure will not deform. Easy to compress It adapts to the stretch of structures with rough surfaces and temperature differences, so it has good water tightness. When heating or compressing, the ingredients will not bleed through the foam. Lightweight and does not fuse between foam, making it easy to install and store.