Sold in an 81g (70ml) tube. This is the only stuff we use on our cars. Great for engines, differentials, transmissions, etc.
Dirko Grey: RTV silicone safe up to 575 deg. F (300 deg. C). Permanently elastic, cures by reacting with humidity in the air.
Dirko HT: Silicone, safe up to 600 deg. F (315 deg. C). Pasty, elastic, cures by cold vulcanization.