Rabara ke thepa ea polymer e tenyetsehang haholo e nang le phetoho e ka fetoloang.

E tenyetseha mochesong oa ka tlung 'me e ka hlahisa phetoho e kholo tlas'a tšusumetso ea matla a manyane a kantle.E ka khutlela boemong ba eona ba pele ka mor'a ho tlosoa ha matla a kantle.

Ho na le mefuta e mengata ea rabara ho kenyeletsoa EPDM, Neoprene Rubber, Viton, Natural Rubber, Nitrile Rubber, Butyl Rubber, Timprene, Synthetic Rubber, jj.