Kan overshoe leh rubber shoes te chu a chhe ang a, a chhe thei ang a, a chhe thei ang bera crack awlsam. He thil thleng hi aging of rubber. rubber aging hi harsatna buaithlak tak a ni. a tlangpuiin, oxidation, ni êng leh temperature sang tak chuan rubber chu a upa thei.
Rubber-a pianna khua hi South America a ni a, tualchhung Indian-te chuan thing mittui an ti a ni. a chhan chu rubber thing vun chu a tan a, a tir lamah chuan mittui tlain thing ang maiin latex dum a luang chhuak ang., miten latex-ah acetic acid tlem an dah a, solid substance.-ah condensed-in raw rubber . a ni a, a raw rubber chu a raw rubber a ni lo. High. a elastic a, mahse, a bik takin temperature inthlak danglamnaah a sensitive hle. a awlsam a, a lumna chu a nem ang a, a hmin ang a, rubber processing plant-ah chuan khawsik a khauh ang a, a brittle bawk ang., miten sulfur hmangin rubber raw hmel chu revolutionize turin an hmang tan ta a ni. Sulphur atom chuan rubber molecule te chu a inzawm khawm thei a, chu chu a dang a ni a, linear structure chu a inzawm leh ta a ni, linear greast the linear the linear the linear the linear the linear the linear the linear the linear the there against the linear the there against the linear the there achanges Rubber{/8}} Rubber processing-ah hian vulcanizing agent, coloring agent, softening agent, reinforcing agent, filler, antioxidant leh a ang chi te dah belh a nih bakah a dah tel bawk.
Ni hian ultraviolet rays tam tak a pai a, ultraviolet rays sterilize leh tihdam theih bakah, rubber product chhunga an drilled a nih chuan, rubber chain chu a rualin cut. a ni a, chu chu sulfur atom a\\anga a chhuahna tur, sulfur atom a\\anga a lose tur, sulfur atom chu a boral a, chu chu a chhuahna tur a ni. A elasticity leh intermolecular bond, chuvangin crack chu a chhia.
Chuvangin, overshoes leh rubber shoes i paltlang a, i sil nghal a, a vawt tur hmun thim leh boruak a vawt takah dah la, ni chu expose lo la, stove-ah i bake lo ang a, kerosene leh gasoline i khawih lo ang, a chhan chu oil chu class-a molecule te chu rubber molecule-ah an drill ang a, chu chuan rubber molecule te chu a tizau ang a, rubber shoes chu a tizau ang a, a tifai ang a, a tifai ang a, a tifai ang a, a tifai ang.