Slime puncture prevention for car tires The Slime tire sealant has been formulated and tested for use thus making it a good sealant. Once installed, Slime remains liquid and will not harden or dry out. This formula seals holes up to as much as six millimeters. As the tire treated with Slime rotates, the centrifugal force distributes the sealant over the tread, this creates a layer of protection and seals a puncture that occurs immediately, thus preventing air from escaping from this hole. Specifications: Color: green Material: plastic Content: 273 ml