The Chain Wax Mixture
Simple Paraffin wax (candle wax), plus fine powdered PTFE.
The PTFE has to be 1.6 microns or it is too big to get inside the chain.
500 Grams of Paraffin wax and 50 grams of PTFE.
Heat the wax (I use a slow cooker), so it is fully melted and clear, then whilst stirring gently, pour in the PTFE slowly. A slow cooker is a much better idea than the kitchen stove as Leigh can attest, or maybe it was Margaret.
I get the PTFE from Badger on line, Australian company, at about $10 for 50 grams.
The wax can be had on line or from craft stores fairly easily.
I get it from http://www.candlemaking.com.au at about $6 a kilo.
So the mixture cost is $13. That should last for up to 6,000 km, maybe more.