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1. How is Perma-Patch® different from a standard cold patch?
2. Why should I use Perma-Patch® for my patching requirements instead of hot mix asphalt?
3. Who uses Perma-Patch®, and how long has it been used?
4. Why do utility contractors find Perma-Patch® to be a superior patch material?
5. Once Perma-Patch® is placed, how long must we avoid driving over the Perma-Patched area?
6. At a later date, can we resurface over areas repaired with Perma-Patch®?
4. Why do utility contractors find Perma-Patch® to be a superior patch
material?
Experience shows that wherever repairs to utility cuts, potholes, or roads are made using hot mix asphalt, within three months to three years after a standard repair, there will be a gradual increase in the separation of the old paving from the new paving. This separation is due to the difference in the thermal coefficient of expansion between dissimilar materials. This separation allows water to penetrate under the paved area and with the effects of the perma-frost, this leads not only to gradual disintegration of the repaired area, but extends to the street base up to 500 feet away. The only solution to this observable problem is to substitute Perma-Patch® for hot mix asphalt. Perma-Patch® eliminates this separation, because underlying the hard surface layer of Perma-Patch® is a pliable layer of Perma-Patch® acting as a large expansion joint constantly sealing the interface between the surrounding paving and the new Perma-Patch® repair material.
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