Elring Curil T2
Non-Hardening (and smells minty!) case glue from Elring. Made in Germany. This is what we use to seal VW engine cases to prevent drips. We also use it on all paper gaskets during assembly. 75 gram tube can easily assembly 5 engines

Seriously.... This is the stuff to get. That's why we don't even offer permagoo Part Number - UN1252000