Here's a quick video on applying shellac. We use it before applying a sealer like epoxy or Waterlox. We highly recommend shellac for a base. It Is great for sealing the pores of the wood This helps you use less of your finish. We also recommend using a de-waxed shellac if you are gonna use shellac as a sealer. | Knock on Wood Custom

95% of the time pre mixed shellac out of a can is just fine. Sure it’s a little thicker than you would usually want but thinning it out is easy. Sometimes though it is worth it to mix up your own. Since shellac is an alcohol based solution it can be tinted different colors and the canned version only comes in two: blonde and amber. That’s when I mix up my own. First decide what thickness you want. That will vary depending on what you are using the shellac for. For a top coat the “two pound cut”

Detailed step-by-step gel polish process from top experts | Nails