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.