hi,we can supply retreading material,cushion gum,cold retreading rubber and hot retreading rubber,if you like it,contact me cushion gum--retreading materialcushion gum for cold/hot retreading tyre;the specification is:width is 250-350mm,thickness is 0.8-1.3mm.vulcanizing temperature:115.the cushion gum's purpose:make the tire body and tread stick together. Cushion gum for Tire retreading