china wall sealant??
If there's a gasket made for it whether cork or rubber or silicone, I'm not a fan of "gasket from a tube" except in the corners where the gaskets come together. Sometimes a little weatherstrip adhesive, or hi tack or "indian head" to hold things from slipping when I set the parts in place and start the bolts... Same with rear ends... I look for a gasket before I look for the tube of slime..