Pavement maintenance guide
Sealcoating: what to inspect, repair, and specify.
Use this guide to decide whether pavement is a candidate for sealcoat, build a complete scope, and compare quotes without relying on vague promises.
The basic distinction
Maintenance is not reconstruction.
Sealcoat is a surface-maintenance treatment for suitable asphalt. It can refresh appearance and provide a sacrificial surface layer, but it does not rebuild a failed base, restore missing asphalt, correct drainage, or make a structurally failed parking lot sound.
The first useful decision is therefore not which sealer to buy. It is which areas are suitable for coating, which need crack treatment, which need patching, and which may need deeper reconstruction.
Condition triage
Walk the pavement before requesting a coating price.
Sound asphalt with normal weathering
Candidate for maintenance after cleaning and project-specific preparation.
Individual cracks
Document width, pattern, movement, and prior treatment; price crack work separately.
Potholes or isolated failed areas
Repair before sealcoating and define the patch limits and method.
Alligator cracking, rutting, or widespread movement
Investigate base, subgrade, drainage, and loading before selecting a surface treatment.
Standing water or poor drainage
Correct or account for the cause; a dark coating does not change grade or provide an outlet.
Oil, fuel, or chemical contamination
Identify and treat incompatible areas under the selected product guidance.
Quote checklist
A sealcoat proposal should name the work, not just the price.
Measured area
Total square footage and any zones excluded from the work.
Named product
Manufacturer, product line, and the current technical data that governs mixing and application.
Repairs
Crack treatment, potholes, failed pavement, utility cuts, and oil-damaged areas listed separately.
Preparation
Cleaning, vegetation removal, edge work, protection, and treatment of incompatible contaminants.
Application
Number of coats, application method, planned rate, dilution or additives, and treatment of high-wear areas.
Operations
Phasing, entrances, traffic control, weather criteria, closure, reopening, and tenant or customer notice.
Markings
Layout, stalls, accessible markings, fire lanes, arrows, curbs, and timing after the surface is ready.
Good scope signals
- The product and current technical sheet are identified.
- Repairs and coating are measured separately.
- Preparation and protection are described.
- Weather and reopening follow the actual product.
- Phasing reflects how the property operates.
Red flags
- Sealcoat is offered as the fix for structural failure.
- The quote does not name the product or application rate.
- Cleaning, crack work, and patching are assumed but not listed.
- A fixed reopening time ignores weather and site conditions.
- The proposal promises permanent restoration.
Common questions
Will sealcoat repair alligator cracking?+
No. Interconnected or alligator cracking often points to movement or failure below the surface. The cause and repair limits should be evaluated before coating.
Can sealcoat fill potholes?+
No. Potholes and failed pavement require a separate repair. Coating over them does not restore the pavement section.
How long should the lot stay closed?+
There is no responsible universal answer. Product, coat thickness, temperature, humidity, shade, wind, surface condition, and traffic all affect reopening.
Should every quote include two coats?+
The appropriate system depends on the named product, pavement, application rate, wear, specification, and owner goals. Compare the complete system rather than the coat count alone.
Need a condition review and itemized scope?
Send the address, approximate area, photos, operating hours, repair history, and desired timing.