A ceramic-reinforced lubricant penetrants deep into the chain and protects the chain from breaking prematurely*. WD-40 Specialist Roller Chain Non-Fling Lubricant sprays on thin to penetrate deep into roller chains, inner chain links, pins and bushings, and then thickens to provide long-lasting lubrication, even with chains operating at a high RPMs. By penetrating deep into crevices, this formula helps protect the chain from rust and breakage. This roller chain lube's ceramic-reinforced formula repels dirt and helps keep the lubricant from flinging off the chain during use. Safe on metals, chains, sprockets, chain links and O-Ring chains. *based on proper chain maintenance extending the life of a chain. Proper maintenance for roller chain is cleaning and lubricating not only the external parts (chain and sprockets) but also the internal parts (chain links) of the chain. * Ceramic Reinforced Formula * Penetrates deep and thickens to provide long-lasting protection * Non-Fling at high RPM * Prevents chains from premature breaking * Safe on O-Ring chains * 50-state VOC compliant