| abstract |
PROBLEM TO BE SOLVED: To provide a high specific gravity EPDM composition which has a high specific gravity, is soft, suppresses blooming, and has strength, weather resistance, Improve heat and humidification resistance. SOLUTION: In a rubber composition containing EPDM as a main component, nickel powder or cupric oxide powder is contained in a proportion of 30% by volume to 150% by volume with respect to 100% by volume of rubber, and the specific gravity is 3%. 0.0 or more and 6.0 or less. |