Welcome! 11D International is manufacturer of 11D Tyre Sealant; a premium solution to end tyre punctures right when they happen. 11D Tyre Sealant is a liquid solution that is applied inside a tyre and will remain fluid as the vehicle is in operation. When the tyre is punctured, 11D is forced into the hole where it will form a permanent seal instantly, without compensating the driving characteristics of the vehicle.