Traditional "cork grease" is a petroleum based product that clogs the pores and over time, reduces the cork’s ability to absorb moisture and ultimately leads to the disintegration of the cork itself. This specially formulated, all-natural blend of non-toxic exotic waxes, oils, anitoxidants, stabilizers and Slippery Elm Bark Extract (Nature’s Teflon) controls the dimensional stability and water balance while enabling smooth assembly and disassembly of your instrument.