What is

What is "frit"?

Have you seen pipes that either have a beautiful dense coloring that seem to have a layer of clear on top of the color?  That is generally created by using frit.  So what is frit?  Frit is crushed glass that is ground up to a very fine, almost sand like consistency.  It comes in different thicknesses but generally very small.  The frit is the melted into a tube of clear glass until the two different materials become one.  The colors come out very vibrant!