Since my very first, self-built sub-case is ready, I wanted to clarify a few questions in advance, or rather clarify the individual steps and let them be blessed by you. So, in general, it should be a closed case, planned in continuous 19er MDF. Screwed and glued (though I thought, I take Ponal for…someone else’s suggestion?) and 24h harden. While inside the joints are covered with silicone and also have them harden 24h. Finally, I wanted to add a layer of underbody protection to the interior. I have a question: do I have to impregnate or laugh at the interior walls beforehand? Or can I apply the underbody protection directly? And how long should the underbody protection evaporate? 24-36h? Kay, that would be it for now. kkbyethx