Its a fast-evaporating organic solvent, along the lines of Acetone. Its usually located next to other solvents at most hardware or painting specialty stores, but it may not be available in some localities due to VOC restrictions or the fact that it is considered an illicit drug precursor chemical.

: You mentioned cleaning the PVC with MEK - what is that? and, more importantly
: - where do you buy it?

: Thanks.

: -Doug