In this guide, you will learn how to make Polyaniline in Subnautica. You have to follow the simple steps to make it.
You need to have gold and hydraulic acid to make Polyaniline. To get the hydraulic acid, you have to go to the lava zone to find red carpet-type plants after getting there. You will spot the Bora island; you can get the base building pass from there.
After that, head to the bottom, and you will find mushrooms after getting there.
You have to grab a few of them and head back towards your base; you will find some gold on the way. To find it, you first have to get the sandstone and break it to get silvers, gold, or lead.
After getting back to the base, you will need to go to the resources and tap on the advance materials. You will find that you need three deep shrooms and the salt deposit to make the hydraulic acid.
Now you need to have gold. Go to the advance materials; you will find the Polyaniline tab, click on it, and get Polyaniline, as shown in the image below.