Plug for sealing a puncture in a tyre, kit therefor, method therefor, and tyre comprising the plug

A plug for sealing a puncture in a tyre, the plug comprising a head portion and an attached tail portion, the head portion comprising:

• a porous material that comprises open pores and is capable of absorbing >0.02 grams of water per gram of porous material with the porous material forming at least an exterior part of the head portion, wherein the porous material is selected from the group consisting of microfibre suede, bonded leather, PVC/polyester fabric, leather, microfibre leather, PVC/cotton mesh laminate, PVC/polypropylene mesh laminate, PVC/polyester mesh laminate, PVC/silk mesh laminate and PVC/nylon mesh laminate;
• and
• an accelerant selected from the group consisting of a salt, a polar solvent, an acid, and any combinations thereof, wherein the accelerant is retained in the pores of the porous material and is configured to react on contact with a curable sealant selected from the group consisting of anionic stabilized sealants, steric stabilized sealants and anionic colloidal dispersions thereby reducing curing time of the sealant, and wherein the porous material does not comprise the sealant.