We are installing some new controls on a large boiler in a power house.These controls are on the boiler front and the raident heat from the boiler makes the seal tite brittle after about 2 years.Wiring on the old controls terminated in the control on a terminal strip .The new controls terminate with a military connector that has a 1/2" seal tite connector on the cable side. Is there a high temp seal tite that will last in this enviroment. THANKS HYPRESS