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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®?
2.Why should I use Perma-Patch® for my patching requirements instead of hot mix asphalt?
In repair of potholes and small utility cuts and trenches, Perma-Patch® is superior to hot mix asphalt because Perma-Patch® is a permanent repair material whereas hot mix asphalt is not. In these applications, Perma-Patch® is the choice material over hot mix asphalt for the following reasons:
a) Perma-Patch® remains pliable below the surface indefinitely. Because of this self sealing characteristic it will not crack or separate from the existing pavement. Hot mix asphalt hardens with declines in temperature and when used in small areas, will become brittle and crack under low temperature conditions. This causes the potholes to reoccur when repaired with hot asphalt.
b) On bridges, on streets over subway tunnels, or any other roads which experience vibrations and movement; Perma-Patch® flexes with movement and vibration, but does not crack like asphalt. Perma-Patch® can be used at any temperature, winter or summer. Hot mix asphalt is not even manufactured during winter weather because it crystallizes when used under 35ƒF. Perma-Patch® can be used in wet rainy weather with no adverse effects and it will still remain permanent.
c) When using Perma-Patch®, there is no need for tack coat. It's composition is such that it will strongly adhere to stone, wood, steel, asphalt, and concrete; but at the same time, it does not adhere to rubber tires.
d) The equipment required for placing and compacting Perma-Patch® is minimal, and in many instances, not required. Perma-Patch® can be poured directly from the bag into the pothole and traffic can be used as the compaction device. Occasionally, plate compactors or hand tampers may be required. Hot mix asphalt requires a dump truck, raking and smoothing equipment, and proper compaction equipment.
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