A 10mm (coarse grade – ideal for repairs to roadways) tarmac ready to use straight from the bucket. Simply pour into the hole, compact and go! You can use a tamp, wacker plate or even your car to compact the product into place. 1 tub is enough to fill a pothole approximately 0.5sqm when compacted to 25mm. Instarmac 10mm Instant Road Repair (IRR), BBA and HAPAS approved permanent repair macadam for use on footways.