(How) should I wax my cassette along with my chains? A while back I got myself a 5kg block of paraffin (this being the smallest the candlemaking supplies store had to offer) to wax my chains. Then it hit me that the cassettes I have been using are definitely of the non-stainless variety, and tend to end up with rust spots on the occasions I have parked my bike outside, and using oil to protect the cassette would defeat part of the purpose of waxing the chain.

So, I started wondering, could a cassette be waxed along with the chains to protect it from rust?
The point of waxing is not to rustproof but to lubricate the chain's internals where they articulate. The rest of the wax flakes off quickly. So this wouldn't have the desired effect.