For the repair of potholes, small utility cuts, and trenches, Perma-Patch is far more durable than hot mix asphalt for the following reasons:
Perma-Patch adheres to the surrounding pavement and acts like a large expansion joint. Its self-sealing qualities will not crack or separate from the existing pavement thereby preventing the infiltration of water. In contrast, a hot mix asphalt patch will separate from the surrounding pavement permitting water to flow beneath the patched area within a short period of time. This leads to the rapid deterioration and failure of the patch and surrounding pavement. Potholes will reoccur when repaired with hot mix asphalt.
Perma-Patch flexes with movement and vibration, but does not crack like hot mix asphalt. Therefore, it makes a far superior repair on bridges, around manhole or valve covers, and other applications where vibration, movement, and heavy pounding are present.
Perma-Patch can be used at any temperature, any season. Hot mix asphalt is not manufactured during cold weather because it crystallizes when used under 35°F. Unlike hot mix asphalt, Perma-Patch can be used in wet, rainy weather with no adverse effects and still remain permanent.
There is no need to use tack coat with Perma-Patch as it is self-adhesive. Tack coat is required in the application of hot mix asphalt. Perma-Patch creates a strong bond and adheres to stone, wood, steel, asphalt, and concrete. However, it does not stick or adhere to rubber tires.
No heavy equipment, dump trucks, or large crews are necessary when using Perma-Patch. However, all are required for the placement of hot mix asphalt. Perma-Patch can be poured directly from the bag into the pothole or utility cut. Additionally, Perma-Patch repairs accept traffic immediately and can be compacted by the weight of the traffic. For better appearing repairs, or for repairs of lightly traveled areas, vibratory plate compactors or hand tampers may be used.
There is no delay or expensive dump fees when using Perma-Patch. Hot mix asphalt requires a trip to the asphalt plant and a long wait to be loaded. In addition, any hot mix asphalt that is not promptly used must be discarded.