The Mill and Patch Process: Asphalt patching, built to last.

When deterioration is severe, but complete asphalt replacement is unnecessary, it’s time to mill and patch. With this process, the top layer of asphalt is ground down (milled) and cleaned thoroughly to ensure adhesion to the bonding material and patch. Asphalt is milled to a level that will integrate the patch with concrete gutters, loading docks, or any other structures in low, cracked, or deteriorated areas. CSS1H tack material is applied to create a seamless bond with the patch.

Tightly alligatored and raveling blacktop generally requires mill and patch repair before an overlay or seal coat. The mill and patch process may also resolve water flow issues.

Other types of asphalt patching:

Skin Patch Asphalt Repair
Just as the name sounds, the skin patch process involves laying on a thinner skin of asphalt without milling or grinding down the underlying layer. It builds up low areas before applying an overlay or seal coat. It is also used to resolve water flow issues or to minimize ruts and uneven asphalt. Again, proper cleaning and preparation are the keys to secure adhesion, and the Allied crew is thoroughly trained on all aspects of prepping a surface for a new skin patch. Asphalt skin patching is ideal if deterioration is caught early and does not involve the underlying base.

Pothole Patching
For decades, we’ve provided pothole patching services for our municipal and commercial customers. Our pothole patches are built to last through rugged use and extreme temperatures — after all, we’re based in Minneapolis, Minnesota, and we know the weather!

Infrared Patching
We recommend infrared patching for superficial repairs, such as repairing a seam between pavement mats or correcting surface imperfections. Infrared patching is a fast, cost-effective method for minor surface repair.

Patch it or seal it? Ask the asphalt experts!