From Morris’s Lubricants: >br<
Chain lubricant is a specially formulated aerosol designed for the protection of chains used in a variety of applications. This product is initially a thin flowing lubricant which when sprayed, searches and penetrates into the chain links and rollers. Within a few minutes the solvent carrier ‘flashes off ‘ and the product thickens and provides a strong, cushioning and lubricating, grease like coating on all parts. This coating has powerful anti-fling properties and is not displaced by the fast movement of the chain. Chain and sprocket wear is reduced to a minimum by the lubricant coating. >br<
Aerosol lube penetrates more effectively than boiling grease. But I guess you good folk who boil chains would prefer to stick to a performance as outmoded as hand gear change and acetylene lights – happy to do a job that never needs to be done rather than go with ‘new’ fangled ideas like proper chain lube. Every one to their own!