Boeshield T-9 is Space Age Technology for Bicycle Chains Solvent Base flushes out old lubricants. Penetrates deeply to thoroughly coat inner pins and rollers. Dries to a clean Paraffin Wax film so it will not pick up dirt. Lubricates and protects for 150 to 200 miles per application. Also great for maintaining these bicycle components: Drive Chain Derailleur Brake Cables Shift Cables Caliper Pivots Seat Posts Spoke Nipples inside Frame One Step Application: Clean, Lubricates, Protects Spray on and wipe off. Boeshield T-9® will dissolve itself and flush out any other lubricant. For best results soak thoroughly and allow 2 or more hours for complete penetration. Then wipe off all external residue. No Dirt Pickup After wiping, Boeshield T-9® will dry quickly, leaving no sticky film to gather dirt and mud. Completely Waterproof Once dry, Boeshield T-9® will not wash off in rain, puddles, and mud. Water washing will remove sand, dust, and grime, but not the lubricant. Guarantee We feel we have the best product of its type on the market. If you can find a better penetrating lubricant and protectant, let us know, and we’ll refund your purchase price.