If you're talking about shellac flakes, here's a link to a shellac weight chart.THANKS JIM AND LYLE, WHAT DO I DISOLVE THE SHELLAC WITH AND THE PROPORTION. GOD BLESS STAY BSAFE ALL DON
Shellac Weight Chart
A lot of people will start out with a heavier weight, say around 3 to 4 lbs, Store that in an air tight container, then pour out an amount needed and lighten that up by adding more denatured alcohol. I've been playing around with some blonde and garnet flakes and I find a 1 1/2 lb. cut works best for me.
One last thing, after mixing up your initial batch and letting it fully dissolve (I usually make it up a day or two before, some people grind the flakes in a coffee grinder to speed up the process.) strain it through some cheesecloth or a paint filter (coffee filters and paper towels don't work very well) to remove all the bug parts and other debris that you always get in flakes.
Nice thing about shellac, if you mess it up, just wipe it off with denatured alcohol and start over.
Charles