TYRE SEAL-FIT (SOFT) 5KG Air Seal Rim Sealant is a combined tyre lubricant and bead sealant product used on corroded both steel and alloy wheels.To prevent Air loss and pressure loss through bead leakage. Air seal, Seal Fit or Rim Seal as it’s otherwise known, is specifically designed with the intention of providing both a sealant and lubrication in one product. This is the SOFT version on the Air Seal product Ideal for colder areas.