What Leads to Cracking and How to Stop It From Happening Again
Cracks can show up after pavement sealing for a few simple reasons. The surface may not have been cleaned well. The weather may have been too hot or too cold. Small cracks may not have been repaired before the coating went down. When these issues happen, the new sealcoat cannot bond the right way. The good news is that most of these problems can be fixed and prevented with the right steps.
Common signs something went wrong
Not all cracks mean total failure. Some are minor surface lines. Others point to deeper problems under the asphalt. Knowing the difference helps you decide what to do next.
- Thin hairline cracks across large areas
- Cracks that follow old repair lines
- Larger splits along driveway edges
- Flaking or peeling in high traffic spots
- Water pooling in small gaps
If cracks appear only weeks after pavement sealing, that usually means prep work or timing was off. If they show up months later, age and traffic may be the cause.
Why cracks appear after sealing
There are a few main causes behind post-seal cracking. One of the biggest is poor surface prep. Dirt, oil, and loose gravel stop the sealcoat from sticking well. When cars drive over the area, the coating pulls apart.
Weather is another major factor. If pavement sealing is done in cool weather, the material may not cure the right way. If applied in extreme heat, it can dry too fast and become brittle.
Skipping crack repair is also common. Sealcoat is not a filler. It is a protective layer. If cracks are not cleaned and filled before sealing, they will reopen through the new coating.
Finally, heavy traffic too soon after application can damage the surface. The coating needs enough time to dry fully before cars return.
What to check first
Before planning repairs, inspect the surface closely. Look for patterns. Are cracks only near the edges? Do they form a web across the center? Are they deep enough to catch your fingernail?
Next, think about timing. Ask these questions:
- Was the surface pressure washed and cleaned?
- Were existing cracks filled before sealing?
- What was the temperature that day?
- How long did the surface stay blocked from traffic?
These answers help you figure out if the issue is surface-level or structural.
Safe fixes vs. professional repairs
Some cracks can be handled with simple maintenance. Small hairline cracks can be cleaned and filled with a quality crack filler. After curing, a light recoat may be applied to blend the area.
But larger cracks or wide splits are different. If the base under the asphalt has shifted, patching alone will not solve the problem. In these cases, damaged sections may need to be cut out and rebuilt.
A trained crew will check the base layer, drainage slope, and overall surface strength. This step helps avoid repeating the same issue after new pavement sealing.
How to prevent cracks after sealing
Prevention starts before any sealcoat is applied. Good preparation makes a big difference in long-term results.
- Clean the surface fully. Remove oil, dirt, and debris.
- Repair all visible cracks with proper filler.
- Patch weak or sinking areas before coating.
- Apply sealcoat only in proper weather conditions.
- Block traffic until the surface cures completely.
Routine maintenance also helps. Inspect your pavement twice a year. Clean off debris that traps moisture. Fix small cracks early before they spread.
Water is one of asphalt’s biggest enemies. Make sure drainage is working well. Downspouts should direct water away from the driveway or parking lot. Standing water often leads to cracking under sealcoated surfaces.
When it is time to schedule expert help
If cracking keeps returning after repairs, there may be a deeper foundation issue. Large commercial lots with heavy truck traffic also need special attention. A detailed inspection can reveal whether the problem is surface wear or base failure.
Property owners in Florence, SC often deal with changing temperatures and moisture swings. These shifts can expand and contract asphalt, leading to splits over time. Having the surface checked before applying new pavement sealing can save money and frustration later.
Get reliable help for longer-lasting results
If you are seeing cracks after pavement sealing in Florence, SC, we are ready to help you sort out the cause and fix it the right way. Our team at GPC Paving focuses on proper prep, solid repairs, and careful application so the surface holds up under traffic and weather. Call us at (843) 534-5768 to schedule an inspection and let us restore your pavement with work we stand behind.