"Black wax" refers to a substance that is black in color and has a wax-like texture, often used metaphorically to describe records or vinyl albums. Full definition
If you love the wax like us though, using black wax over clear wax can also help to achieve the look of this wash! (stylishpatina.com)
Our chairs look beautiful but are completely ruined because no one can sit on them without getting completely covered in black wax! (canarystreetcrafts.com)
So have you tried the new white wax yet — or the new black wax? (girlinthegarage.net)