Two Types of Pothole Patching
Cold-mix and hot-mix asphalt are both pothole-patching materials, but they serve different purposes. Cold-mix is bagged or stockpiled material that can be applied at any temperature without a hot-mix plant. Hot-mix comes from an asphalt plant at 300°F+ and is the same material used for full paving. The difference matters for cost, durability, and when you can use each.
Cold-Mix Asphalt: What It Is
Cold-mix is asphalt aggregate coated with a special emulsion binder that stays workable at ambient temperatures. It comes in bags or in bulk and can be installed by hand or shovel. It compacts under traffic over time. Drivable in 30 minutes after installation.
Cold-Mix: Best For
Emergency repairs in cold weather (when hot-mix plants are closed). After-hours and weekend repairs. Temporary fixes that buy time until permanent repair is possible. Small isolated potholes where the cost of mobilizing a hot-mix crew is prohibitive.
Cold-Mix: Limitations
Service life is 6 to 18 months on average. Less durable under heavy traffic. Less waterproof than properly compacted hot-mix. Aesthetically less consistent. Compaction depends on traffic loading, which can be slow to materialize on low-volume lots.
Hot-Mix Asphalt: What It Is
Hot-mix is the same asphalt used for full pavement work. Comes from a plant at 300°F+, must be applied and compacted while still hot, requires plant access (March through November in Chicagoland), and bonds permanently to the surrounding pavement when properly tack-coated and compacted.
Hot-Mix: Best For
Permanent pothole repairs. Saw-cut patching of larger failed sections. Mill-and-overlay work. Any repair where you want long-term performance comparable to the surrounding pavement.
Hot-Mix: Limitations
Requires asphalt plants to be open (March through November in Chicagoland). Requires hot delivery (typically within 1 to 2 hours of plant departure). Cannot be applied below 50°F surface temperature with consistent results. More expensive per ton than cold-mix because of plant access requirements.
The Right Strategy: Use Both
Most professional commercial contractors use both materials strategically. Cold-mix in winter for safety hazards, with permanent hot-mix follow-up scheduled when weather allows. Hot-mix in season for any planned repair work. Cold-mix as a stop-gap for after-hours emergencies. Hot-mix for the permanent fix.
Bagged vs. Bulk Cold-Mix
Bagged cold-mix is convenient for small applications and emergency response. Bulk cold-mix is dramatically cheaper per ton for larger applications and is what most commercial contractors stockpile for winter work. Quality varies — premium cold-mix products perform much better than budget alternatives.
Don’t Use Cold-Mix For Permanent Work in Season
If asphalt plants are open and you have time to schedule hot-mix, cold-mix is the wrong choice. The cost difference doesn’t justify the durability difference. Cold-mix in season is a short-term fix that costs more in the long run.
Get a Free Commercial Paving Estimate
Need help with a commercial paving project? Every estimate is free, on-site, and itemized. Most on-site estimate within 48 hours, with on-site estimate within 48 hours. Use the form on this page or call (630) 555-PAVE.
Get a Free Commercial Paving Estimate
Need help with a commercial paving project? Every estimate is free, on-site, and itemized. Use the form on this page or call (630) 555-PAVE.