Rubber ke thepa ea polymer e otlolohileng haholo e nang le deformation e fetohang.

E na le elastic ka mocheso oa ka hare 'me e ka hlahisa deformation e kholo tlas'a ketso ea matla a manyenyane a ka ntle.E ka khutlela boemong ba eona ba pele ka mor'a ho tlosoa ha matla a ka ntle.

Ho na le mefuta e mengata ea rabara ho kenyelletsa EPDM, Neoprene Rubber, Viton, Rubber ea Tlhaho, Rabara ea Nitrile, Rubber Butyl, Timrene, Synthetic Rubber, joalo-joalo.