Straight paraffin wax will flake off very easily. Mix oil, grease, or beeswax with the wax to increase adherence. Yellow wax toilet rings are very sticky...used to be beeswax but who knows nowexactly what they are. Works great for me, though. You can also add dry moly lube. Once you have waxed a chain, if it gets noisy, just pop off the chain, wipe the grit off, and drop it in the hot wax. If it's a new chain stick it in the wax directly, the grease will help the stickiness issue. An old geasy chain can be cleaned with detergent or gas/mineral spirits etc. You can buy a used crockpot for nothing at thrift stores or garage sales and keep it for this purpose only. Turn it on, wait an hour till the wax melts, put a bit of wire through the middle of chain, long enough to hang over the edge, and let it sit in there for half an hour or so. Pull it using the wire and let it drain and cool. Piece of cake.