Crafting and building both play a big part in the overall Starfield experience. Players can make their own gear mods and outposts by using raw resources in the right places and surely enough, they're going to need a ton of resources if they want to keep producing items.
Starfield: How to Farm Sealant
One can never have too much Sealant in Starfield, especially since it's used in almost every basic building and crafting project.