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sponge rubber
sponge rubbern. A soft, porous rubber used in toys, cushions, gaskets, and weather stripping and as a vibration dampener.sponge′ rub′ber
n. a light, spongy rubber, usu. prepared by bubbling carbon dioxide through or whipping air into latex; foam rubber. sponge rubber
sponge rubber[′spənj ¦rəb·ər] (materials) rubber sponge sponge rubber, foam rubberExpanded rubber having a cellular structure; usually has interconnecting cells; used as resilient padding and as thermal insulation.ThesaurusSeefoam rubber |