sponge rubber

American  

noun

1. a light, spongy rubber, usually prepared by bubbling carbon dioxide through or whipping air into latex, used for padding, insulation, gaskets, etc.; foam rubber.

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Etymology

Origin of sponge rubber

First recorded in 1885–90

Example Sentences

Since long-range flights mean long, fatiguing hours in the air, the ship carries chairs cushioned with sponge rubber and bunks in which unoccupied crew members may rest.

From Time Magazine Archive

Chicago's American Hair & Felt Co. introduced felt carpet underpadding in the '20s and cornered the market, but in the early 1960s it was nearly trampled by the consumer stampede to sponge rubber.

From Time Magazine Archive

Kneepads, shin guards beneath her stockings, and sponge rubber tucked under her garter belt have not been enough to protect Patty from assorted cuts, bruises and a chipped tooth.

From Time Magazine Archive

For the sake of speed, Patton wears no hip pads, makes do with a piece of sponge rubber over each hipbone.

From Time Magazine Archive

He rolled the ball out upon the hatch, where he opened it; two hinged hemispheres, each heavily padded with molded composition resembling sponge rubber.

From Triplanetary by Smith, E. E. (Edward Elmer)