Bias-ply patch is fit for puncture, reinforcing and section repairs, which can be applied in any repairable area of tube or tubeless bias-ply tyres. The reinforcing plies are protected and encased in a molded "ply package", that makes the repair strong while keeping flexibility. The face stock used in our repair units will vulcanize either chemically or in a low temperature (precure) system when applied with vulcanizing cement. This repair unit is black with gray vulcanizing gum on a blue poly backing