I'm installing stainless steel piping in a drain and pressure release system for jet fuel.(jp-8). I have used blue max pipe dope on some and stailess thread seal tape on some and both on others, and have numerous leaks on all applications. The system can't be down long enough for locktite 243 to cure. ( I have used loctite with success before but had cure time). Is there any known secrets to sealing threads or stopping leaks