By "improving the heat resistance in uncured state" you mean delay vulcanization? Probably you could reduce the amount of accelerators or substitute ultra-accelerators with slower accelerators to achieve this.
By this I mean minimizing the loss of Mooney viscosity of Butyl rubber based sealant in uncured state when heated at temperature at 80 deg Celsius. Will any thermal stabilizer can help or any other additive.
Johannes Albert Österreicher Sridhar Vadahanambi By this I mean minimizing the loss of Mooney viscosity of Butyl rubber based sealant in uncured state when heated at temperature at 80 deg Celsius. Will any thermal stabilizer can help or any other additive. Our product is not cured