Muc-off CHAIN LUBE (MOX949) Muc-Off Dry PTFE Chain Lube is formulated to hold up to the extreme pressures that are applied to modern drive chain. It's a highly versatile, all-weather chain lubricant that has superior penetration qualities ensuring that every part of the chain link is lubricated. Our advanced "Dry Formula" creates a clean, durable and protective layer that inhibits rust and corrosion.