A run-flat insert 200 for enabling a vehicle to run for limited duration on a deflated tire 20, is mounted in an assembly comprising a pneumatic tire 20 and a wheel rim 10, and said insert is mounted inside the tire and secured to the wheel rim. A first metallization layer connects to the doped regions of the first type through conductive paths, such that current is able to flow within the metallization layer along a plurality of linear axes. A fabric material is stretched across the frame between the top, bottom, and side rails. Cleaning solution is supplied to the cleaning vessel through a supply line. A first insulation layer pattern and a second insulation layer pattern are sequentially formed on the active pattern. A passage is provided from the most downstream cylinder to the most upstream cylinder thereby allowing for re-circulation of the lubricant.