Comma Wax Seal 500mlComma Wax Seal 500ml Comma Wax Seal is a wax based fluid designed to protect a vehicle's underbody, chassis box sections, door panels and sills from corrosion. Effectively prevents rust and any further corrosion from forming, formulated with water repellent and excellent coating properties. Wax based rust prevention spray Effectively prevents rust and further corrosion Water repellent Excellent coating properties Quick and easy to use