What's the black stuff? The chain is supposed to be clean. "The chain should be VERY clean and dry before applying." https://silcavelo.eu/collections/chain-lube-wax/products/silca-super-secret-chain-lube
Molybdenum probably. Used in robotics as a lubricant, not good for the environment.
not good for the environment
[citation needed]
Molybdenum disulphide is a layered solid lubricant with better lubricity than graphite.
@Leshaches started
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What's the black stuff? The chain is supposed to be clean. "The chain should be VERY clean and dry before applying." https://silcavelo.eu/collections/chain-lube-wax/products/silca-super-secret-chain-lube