The time taken by the Cold Lay Macadam to harden fully will depend on the degree of compaction and ambient temperature. Use a protective sheet or plastic bag around the mix to avoid it staining or damaging your clothes or any surfaces. ColMac is a 25 kg Cold Tar Tarmacadam product used for repair of Driveways, Potholes, Road Crossings etc.

ULTIPATCH FOOTWAY is also available for permanent, long lasting repair and reinstatement of footways.Always bear in mind that the ground temperature will be a few degrees colder than what your weather app says. Before we answer this, though, let's get one thing straight; 'cold-lay tar' or 'cold lay asphalt' is a historic terminology used in the surfacing industry for most types of cold mix bitumen based surfacing materials, often used for pothole repair, which are generally supplied in 25kg bags or buckets and sometimes even loose bulk loads. Mixes like Permanent Pothole Repair and Instant Road Repair (available in 10mm and 6mm grade) from the Ultracrete range set instantly!

You’re likely to come across this problem when the bags have been exposed to cold winter temperatures. They put a 6m long ridge of asphalt about 100mm wide and 50mm high on top of the edge of the road surface. As Ultracrete’s range consists of tried and tested formulas under SROH, we don’t recommend adjusting this formula. So you’re not caught out by frost on the ground, it may be worth moving your repair job to later in the day when the temperature is slightly warmer. In such situations, the installer would be required to cut back the edges of the patch to defect-free surrounding surface and properly seal the edges before laying the DSM.Easier, I think, to make a raised hump- essentially a speedbump- that diverts the water off the driveway surface. The extra compaction that bag (or bags) may have experienced during transportation or storage can be enough for the materials to slightly harden. ColMac is a 25 kg Cold Tar Tarmacadam product used for repair of Driveways, Potholes, Road Crossings. In some cases, if adequately compacted, DSMs can result in a permanent repair if the location is not subject to heavy traffic.

It is produced using carefully selected raw materials and strict quality control throughout each stage of the manufacturing process to ensure a consistent final product is achieved. In addition, our building products division has a nationwide network of 19 production and distribution plants, including co-located plants with our internal quarries, which enables us to provide an efficient service across the UK. Dave shares, “There is no minimum temperature to apply our range of cold lay tarmac products as there is nothing in the material that freezes. You can change your choices at any time by visiting Cookie preferences, as described in the Cookie notice.A cookie set by YouTube to measure bandwidth that determines whether the user gets the new or old player interface.