Apply First Coat of Filling Primer

so I'm going to put a coat of of triple thck on here I'll sand it after it's dry put a second coat of triple thick it's going to fill in all this checking on here and then eventually when we hand brush it we'll put two coats hand brushed on and we'll see how it's going to look it'll actually I know it's going to look amazing so but we'll show you on camera what it's going to look like so I'm just going to brush on a coat it's better to brush it on cuz you're going to be pushing it down into all the checking and splintering and you want to lay it out nicely cuz you do want this door jam to look nice when it's done you don't want to have it all stippled with paint so so