1964, Coran et masha ni gaw Vulcanigates hpe sawk sagawn ai mahtai ni hte maren,2-mercapto-thiazole (MBT) Zinc sau ni a vulcanization ladat hpe tang madun da ai: Thiazole zinc sau ni gaw sulfur molecule hte bai htang ai, MS-SX-SY-SM, MS-SX-SY-SM hte rubber hydrocker hydrocarbon hpe bai htang ai lam ni hpe galaw ai. hte active intermediates. ngu ai active intermediate hpe hpaw hpang wa ai, n-gun n rawng ai sulfide amyu langai mi rai nna, jahtum e n-gun ja ai promoter hpung langai mi nga ai, dai gaw free radical ni hpe shapraw na matu loi loi hte htum mat ai shaloi, active free radicals ni gaw rubber hydrocarbons ni hte n-gun n rawng ai rubber{{{11111111111111111111111111111111111111111111111111111111111111111111 htang shara) ni hpe hkap la lu ai.
1969 ning hta, Manik hte kaga masha ni gaw, Thiazole hpe n-gun jaw ai wa a akyu ara hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai lam hpe n-gun jaw ai. steate. dai hpang, thiazole sau hte zinc steate a bai htang ai lam, thiazole zinc sau ni hta n kaja ai hte zinc steate hta lawm ai hku nna, Zn-s matut mahkai lam hpe shamu shamawt shangun na matu, (a) n-gun rawng ai intermecule (B){7} hpe galaw shapraw na matu, galai shai ai masa (a) hpe hpaw shabawn na matu, (a) n-gun rawng ai hku bai htang ai. (B) MSSXR. MSSXR. hte n-gun n rawng ai, kaja ai hte n kaja ai ions ni hpe garan ginhka ai, ion ni hpe rubber hydrocarbon hte kayau nna, n-gun rawng ai rubber. hpe shapraw na matu, ion ni hpe rubber hydrocarbon hte kayau kaya galaw ai.